The new file will have the exact same decompression errors as the input file.
But why doesn’t MP3packer complain about them?
mp3packer -z 8bp026-05-sabastian_boaz-cold_hard_fusion.mp3
*** '8bp026-05-sabastian_boaz-cold_hard_fusion.mp3' -> '8bp026-05-sabastian_boaz-cold_hard_fusion-vbr.mp3'
WARNING: error decompressing frame 57; copying frame data instead
WARNING: error decompressing frame 69; copying frame data instead
WARNING: error decompressing frame 133; copying frame data instead
WARNING: recompressing frame 145 failed; copying frame data instead
WARNING: error decompressing frame 147; copying frame data instead
WARNING: error decompressing frame 210; copying frame data instead
WARNING: error decompressing frame 222; copying frame data instead
WARNING: recompressing frame 232 failed; copying frame data instead
WARNING: error decompressing frame 261; copying frame data instead
WARNING: error decompressing frame 279; copying frame data instead
WARNING: recompressing frame 290 failed; copying frame data instead
WARNING: error decompressing frame 299; copying frame data instead
WARNING: error decompressing frame 346; copying frame data instead
WARNING: error decompressing frame 357; copying frame data instead
WARNING: error decompressing frame 365; copying frame data instead
WARNING: error decompressing frame 366; copying frame data instead
WARNING: error decompressing frame 376; copying frame data instead
WARNING: error decompressing frame 395; copying frame data instead
WARNING: recompressing frame 470 failed; copying frame data instead
WARNING: error decompressing frame 623; copying frame data instead
WARNING: error decompressing frame 624; copying frame data instead
WARNING: error decompressing frame 652; copying frame data instead
WARNING: error decompressing frame 749; copying frame data instead
WARNING: error decompressing frame 750; copying frame data instead
WARNING: error decompressing frame 758; copying frame data instead
WARNING: error decompressing frame 815; copying frame data instead
WARNING: error decompressing frame 816; copying frame data instead
WARNING: error decompressing frame 824; copying frame data instead
WARNING: error decompressing frame 826; copying frame data instead
WARNING: error decompressing frame 845; copying frame data instead
WARNING: error decompressing frame 874; copying frame data instead
WARNING: error decompressing frame 891; copying frame data instead
WARNING: error decompressing frame 903; copying frame data instead
WARNING: recompressing frame 917 failed; copying frame data instead
WARNING: error decompressing frame 1083; copying frame data instead
WARNING: error decompressing frame 1125; copying frame data instead
WARNING: recompressing frame 1180 failed; copying frame data instead
WARNING: error decompressing frame 1222; copying frame data instead
WARNING: error decompressing frame 1236; copying frame data instead
WARNING: error decompressing frame 1259; copying frame data instead
WARNING: error decompressing frame 1264; copying frame data instead
WARNING: recompressing frame 1298 failed; copying frame data instead
WARNING: error decompressing frame 1303; copying frame data instead
WARNING: error decompressing frame 1437; copying frame data instead
WARNING: recompressing frame 1438 failed; copying frame data instead
WARNING: recompressing frame 1457 failed; copying frame data instead
WARNING: error decompressing frame 1486; copying frame data instead
WARNING: error decompressing frame 1504; copying frame data instead
WARNING: recompressing frame 1515 failed; copying frame data instead
WARNING: recompressing frame 1547 failed; copying frame data instead
WARNING: error decompressing frame 1571; copying frame data instead
WARNING: error decompressing frame 1590; copying frame data instead
WARNING: error decompressing frame 1591; copying frame data instead
WARNING: error decompressing frame 1601; copying frame data instead
WARNING: recompressing frame 1620 failed; copying frame data instead
WARNING: recompressing frame 1623 failed; copying frame data instead
WARNING: error decompressing frame 1624; copying frame data instead
WARNING: error decompressing frame 1690; copying frame data instead
WARNING: error decompressing frame 1695; copying frame data instead
WARNING: recompressing frame 1796 failed; copying frame data instead
WARNING: recompressing frame 1848 failed; copying frame data instead
WARNING: error decompressing frame 1853; copying frame data instead
WARNING: recompressing frame 1872 failed; copying frame data instead
WARNING: error decompressing frame 1877; copying frame data instead
WARNING: error decompressing frame 1896; copying frame data instead
WARNING: error decompressing frame 1974; copying frame data instead
WARNING: error decompressing frame 1983; copying frame data instead
WARNING: error decompressing frame 2040; copying frame data instead
WARNING: error decompressing frame 2041; copying frame data instead
WARNING: error decompressing frame 2049; copying frame data instead
WARNING: error decompressing frame 2051; copying frame data instead
WARNING: error decompressing frame 2070; copying frame data instead
WARNING: error decompressing frame 2099; copying frame data instead
WARNING: error decompressing frame 2104; copying frame data instead
WARNING: error decompressing frame 2116; copying frame data instead
WARNING: error decompressing frame 2128; copying frame data instead
WARNING: recompressing frame 2183 failed; copying frame data instead
WARNING: error decompressing frame 2202; copying frame data instead
WARNING: error decompressing frame 2204; copying frame data instead
WARNING: error decompressing frame 2213; copying frame data instead
WARNING: error decompressing frame 2233; copying frame data instead
WARNING: error decompressing frame 2308; copying frame data instead
WARNING: recompressing frame 2389 failed; copying frame data instead
WARNING: error decompressing frame 2405; copying frame data instead
WARNING: error decompressing frame 2407; copying frame data instead
WARNING: error decompressing frame 2409; copying frame data instead
WARNING: error decompressing frame 2430; copying frame data instead
WARNING: error decompressing frame 2444; copying frame data instead
WARNING: error decompressing frame 2461; copying frame data instead
WARNING: error decompressing frame 2489; copying frame data instead
WARNING: error decompressing frame 2525; copying frame data instead
WARNING: recompressing frame 2528 failed; copying frame data instead
WARNING: error decompressing frame 2654; copying frame data instead
WARNING: error decompressing frame 2662; copying frame data instead
WARNING: recompressing frame 2663 failed; copying frame data instead
WARNING: error decompressing frame 2695; copying frame data instead
WARNING: error decompressing frame 2714; copying frame data instead
WARNING: error decompressing frame 2715; copying frame data instead
WARNING: error decompressing frame 2729; copying frame data instead
WARNING: recompressing frame 2740 failed; copying frame data instead
WARNING: error decompressing frame 2796; copying frame data instead
WARNING: error decompressing frame 2807; copying frame data instead
WARNING: error decompressing frame 2815; copying frame data instead
WARNING: error decompressing frame 2826; copying frame data instead
WARNING: recompressing frame 2845 failed; copying frame data instead
WARNING: error decompressing frame 2863; copying frame data instead
WARNING: recompressing frame 2920 failed; copying frame data instead
WARNING: error decompressing frame 2997; copying frame data instead
WARNING: error decompressing frame 3073; copying frame data instead
WARNING: error decompressing frame 3074; copying frame data instead
WARNING: recompressing frame 3094 failed; copying frame data instead
WARNING: error decompressing frame 3102; copying frame data instead
WARNING: error decompressing frame 3132; copying frame data instead
WARNING: error decompressing frame 3141; copying frame data instead
WARNING: error decompressing frame 3199; copying frame data instead
WARNING: error decompressing frame 3200; copying frame data instead
WARNING: error decompressing frame 3208; copying frame data instead
WARNING: error decompressing frame 3266; copying frame data instead
WARNING: recompressing frame 3274 failed; copying frame data instead
WARNING: error decompressing frame 3276; copying frame data instead
WARNING: error decompressing frame 3295; copying frame data instead
WARNING: recompressing frame 3341 failed; copying frame data instead
WARNING: error decompressing frame 3353; copying frame data instead
WARNING: error decompressing frame 3361; copying frame data instead
WARNING: error decompressing frame 3400; copying frame data instead
WARNING: error decompressing frame 3408; copying frame data instead
WARNING: error decompressing frame 3427; copying frame data instead
WARNING: error decompressing frame 3429; copying frame data instead
WARNING: recompressing frame 3438 failed; copying frame data instead
WARNING: error decompressing frame 3458; copying frame data instead
WARNING: error decompressing frame 3533; copying frame data instead
WARNING: recompressing frame 3630 failed; copying frame data instead
WARNING: error decompressing frame 3658; copying frame data instead
WARNING: error decompressing frame 3686; copying frame data instead
WARNING: recompressing frame 3714 failed; copying frame data instead
WARNING: error decompressing frame 3724; copying frame data instead
WARNING: error decompressing frame 3753; copying frame data instead
WARNING: error decompressing frame 3811; copying frame data instead
WARNING: error decompressing frame 3820; copying frame data instead
WARNING: error decompressing frame 3879; copying frame data instead
WARNING: error decompressing frame 3887; copying frame data instead
WARNING: recompressing frame 3888 failed; copying frame data instead
WARNING: recompressing frame 3907 failed; copying frame data instead
WARNING: error decompressing frame 3936; copying frame data instead
WARNING: error decompressing frame 3941; copying frame data instead
WARNING: error decompressing frame 3954; copying frame data instead
WARNING: recompressing frame 3965 failed; copying frame data instead
WARNING: error decompressing frame 4021; copying frame data instead
WARNING: error decompressing frame 4040; copying frame data instead
WARNING: error decompressing frame 4041; copying frame data instead
WARNING: error decompressing frame 4051; copying frame data instead
WARNING: recompressing frame 4070 failed; copying frame data instead
WARNING: recompressing frame 4145 failed; copying frame data instead
WARNING: error decompressing frame 4298; copying frame data instead
WARNING: error decompressing frame 4299; copying frame data instead
WARNING: error decompressing frame 4327; copying frame data instead
WARNING: error decompressing frame 4425; copying frame data instead
WARNING: error decompressing frame 4491; copying frame data instead
WARNING: recompressing frame 4499 failed; copying frame data instead
WARNING: error decompressing frame 4501; copying frame data instead
WARNING: error decompressing frame 4520; copying frame data instead
WARNING: error decompressing frame 4549; copying frame data instead
WARNING: error decompressing frame 4566; copying frame data instead
WARNING: error decompressing frame 4578; copying frame data instead
WARNING: error decompressing frame 4586; copying frame data instead
WARNING: recompressing frame 4633 failed; copying frame data instead
WARNING: recompressing frame 4652 failed; copying frame data instead
WARNING: error decompressing frame 4654; copying frame data instead
WARNING: recompressing frame 4663 failed; copying frame data instead
WARNING: error decompressing frame 4683; copying frame data instead
WARNING: error decompressing frame 4758; copying frame data instead
WARNING: recompressing frame 4855 failed; copying frame data instead
WARNING: error decompressing frame 4883; copying frame data instead
WARNING: error decompressing frame 4957; copying frame data instead
WARNING: error decompressing frame 4969; copying frame data instead
WARNING: error decompressing frame 5033; copying frame data instead
WARNING: recompressing frame 5045 failed; copying frame data instead
WARNING: error decompressing frame 5047; copying frame data instead
WARNING: error decompressing frame 5064; copying frame data instead
WARNING: error decompressing frame 5072; copying frame data instead
WARNING: recompressing frame 5084 failed; copying frame data instead
WARNING: error decompressing frame 5122; copying frame data instead
100% done with 5208 frames
On this new file MP3packer only reports the recompression errors:
mp3packer -z 8bp026-05-sabastian_boaz-cold_hard_fusion-vbr.mp3
*** '8bp026-05-sabastian_boaz-cold_hard_fusion-vbr.mp3' -> '8bp026-05-sabastian_boaz-cold_hard_fusion-vbr-vbr.mp3'
WARNING: recompressing frame 145 failed; copying frame data instead
WARNING: recompressing frame 232 failed; copying frame data instead
WARNING: recompressing frame 290 failed; copying frame data instead
WARNING: recompressing frame 470 failed; copying frame data instead
WARNING: recompressing frame 917 failed; copying frame data instead
WARNING: recompressing frame 1180 failed; copying frame data instead
WARNING: recompressing frame 1298 failed; copying frame data instead
WARNING: recompressing frame 1438 failed; copying frame data instead
WARNING: recompressing frame 1457 failed; copying frame data instead
WARNING: recompressing frame 1515 failed; copying frame data instead
WARNING: recompressing frame 1547 failed; copying frame data instead
WARNING: recompressing frame 1620 failed; copying frame data instead
WARNING: recompressing frame 1623 failed; copying frame data instead
WARNING: recompressing frame 1796 failed; copying frame data instead
WARNING: recompressing frame 1848 failed; copying frame data instead
WARNING: recompressing frame 1872 failed; copying frame data instead
WARNING: recompressing frame 2183 failed; copying frame data instead
WARNING: recompressing frame 2389 failed; copying frame data instead
WARNING: recompressing frame 2528 failed; copying frame data instead
WARNING: recompressing frame 2663 failed; copying frame data instead
WARNING: recompressing frame 2740 failed; copying frame data instead
WARNING: recompressing frame 2845 failed; copying frame data instead
WARNING: recompressing frame 2920 failed; copying frame data instead
WARNING: recompressing frame 3094 failed; copying frame data instead
WARNING: recompressing frame 3274 failed; copying frame data instead
WARNING: recompressing frame 3341 failed; copying frame data instead
WARNING: recompressing frame 3438 failed; copying frame data instead
WARNING: recompressing frame 3630 failed; copying frame data instead
WARNING: recompressing frame 3714 failed; copying frame data instead
WARNING: recompressing frame 3888 failed; copying frame data instead
WARNING: recompressing frame 3907 failed; copying frame data instead
WARNING: recompressing frame 3965 failed; copying frame data instead
WARNING: recompressing frame 4070 failed; copying frame data instead
WARNING: recompressing frame 4145 failed; copying frame data instead
WARNING: recompressing frame 4499 failed; copying frame data instead
WARNING: recompressing frame 4633 failed; copying frame data instead
WARNING: recompressing frame 4652 failed; copying frame data instead
WARNING: recompressing frame 4663 failed; copying frame data instead
WARNING: recompressing frame 4855 failed; copying frame data instead
WARNING: recompressing frame 5045 failed; copying frame data instead
WARNING: recompressing frame 5084 failed; copying frame data instead
100% done with 5208 frames