Scratched CDs and EAC
Reply #16 – 2004-08-29 06:49:29
There are products made specifically for repairing scratches in plastic. I recently purchased a Micro-Mesh KR-70 restoration kit and used it to fix a scratch in the display window of my Nomad Jukebox. It contains several grades of sandpaper, down to 6000 grit, a foam backing block, a bottle of polish, and instructions. I see it most frequently where supplies for private pilots and aircraft are sold. Its used to fix scratches in airplane windows. Expect to pay about $20. One kit would be enough for many CDs. I just tried it on a CD that had a moderately bad scratch. A few nights ago I was working on another problem with this CD with the following results. I was able to rip it to MP3 files with Plextools and my Plexwriter Premium. No errors but it took longer than normal. I then tried to make an image file and cue file with EAC. About 60% though the disc EAC slowed down to where it took a minute or two for each 0.1%. I finally canceled it. I was able to make a copy with Plextools again taking longer than normal to read but no errors reported. Tonite I scanned the disk for errors with Plextools before doing anything to it and again at different stages of sanding and polishing.In the original condition C1 C2 CU Avg/sec 142.2 126.6 0.0 Max/sec 277.0 850.0 0.0 Total 27394.0 379928.0 0.0 After sanding with 3600 then 4000 grit C1 C2 CU Avg/sec 144.1 15.4 4.5 Max/sec 378.0 481.0 267.0 Total 433353.0 46229.0 13501.0 After sanding with 6000 C1 C2 CU Avg/sec 265.9 22.4 81.2 Max/sec 483.0 342.0 659.0 Total 499021.0 67320.0 244537.0 After polishing C1 C2 CU Avg/sec 122.6 0.1 0.0 Max/sec 232.0 51.0 0.0 Total 368630.0 280.0 0.0 (Is there a better way to make a table than a code block??) After the polishing I was able to make an image file with EAC. It took 5:50 and reported no errors. Two more notes If I look at the disk it is obvious I could do a better job with practice. There are still scratches visible from the sanding steps. This disk is from the 80s. Other disks I have scanned have as many errors as this one has after the sanding and polishing