"Issues" (for curiosity; non-issues for listening purposes) at the end of files. fb2k gives no errors nor warnings.
Both are from the same source, Dutch radio offering festival podcasts, I guess they convert everything using the same tool. Tagless.
One of them: last frame is allegedly "corrupted".
First frame found at 0 (0x00000000).
Frame 147359 at offset 92385071 appears to be incomplete.
294 bytes available, 627 expected.
This frame is corrupted.
Detected MPEG stream version 1 layer III, details follow.
File size : 92385365 bytes
Audio stream size : 92385071 bytes
Length : 1:04:09.378 (3849.378 seconds)
Data rate : 192.0 kbps
Number of frames : 147359
Blocks per frame : 4 (granules per frame 2, channels per granule 2)
Audio samples per frame : 1152
Audio frequency : 44100 Hz
Encoding mode : stereo
Min global gain : l= 99 r=100
Max global gain : l=210 r=210
Flags
Error protection : no
Copyrighted : no
Original : no
Emphasis : none
Block usage
Long block granules : 566160 (96.1%)
Switch block granules : 14858 ( 2.5%)
Short block granules : 8418 ( 1.4%)
---------------------
sum : 589436
Ancillary data
Total amount : 299018 bytes (0.3%)
Bitrate : 0.6 kbps
Min packet : 1 bytes
Max packet : 592 bytes
Max reservoir : 334 bytes
Scalefactor scaling used : yes
Scalefactor selection information used : yes
Padding used : yes
Frame histogram
192 kbps : 147359 (100.0%), size distr: [ 9022 x 626 B, 138337 x 627 B]
0 header errors.
Maybe this file is encoded by Helix
The other, here it is the second-to-last frame, "incomplete" but "valid", whatever that means:
First frame found at 0 (0x00000000).
Frame 134790 at offset 84505078 appears to be incomplete.
417 bytes available, 627 expected.
This frame is valid.
Detected MPEG stream version 1 layer III, details follow.
File size : 84505495 bytes
Audio stream size : 84505495 bytes
Length : 0:58:41.071 (3521.071 seconds)
Data rate : 192.0 kbps
Number of frames : 134791
Blocks per frame : 4 (granules per frame 2, channels per granule 2)
Audio samples per frame : 1152
Audio frequency : 44100 Hz
Encoding mode : stereo
Min global gain : l= 76 r= 70
Max global gain : l=210 r=210
Flags
Error protection : no
Copyrighted : no
Original : no
Emphasis : none
Block usage
Long block granules : 517626 (96.0%)
Switch block granules : 13898 ( 2.6%)
Short block granules : 7640 ( 1.4%)
---------------------
sum : 539164
Ancillary data
Total amount : 2284 bytes (0.0%)
Bitrate : 0.0 kbps
Min packet : 1 bytes
Max packet : 18 bytes
Max reservoir : 334 bytes
Scalefactor scaling used : yes
Scalefactor selection information used : yes
Padding used : yes
Frame histogram
192 kbps : 134791 (100.0%), size distr: [ 8252 x 626 B, 126539 x 627 B]
0 header errors.
Maybe this file is encoded by Helix