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Re-record iTunes protected AAC music to MP3
Authored by: Coumerelli on Feb 08, '06 10:56:31AM

The CD Name/Track info is only just queried from CDDB database and only "knows" what CD you have because it compares number of tracks and length of each track against its very large database. Correct me if I'm wrong, but there's no track information embedded in music CDs at all - only mp3 CDs and in formats that can retain or hold metadata. The time invested inputing track/album/genre etc into each track (for WAVs and AIFFs) can be gone in a flash if the iTunes database file becomes corrupt.

Am I wrong?

---
"The best way to accelerate a PC is 9.8 m/s2"



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Re-record iTunes protected AAC music to MP3
Authored by: sjmadsen on Feb 08, '06 08:33:53PM

All music CDs include a 32-bit ID. The track info lookup services use this ID as a key to the artist, album and track data.



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Re-record iTunes protected AAC music to MP3
Authored by: JimMueller on Feb 10, '06 01:14:19PM

Huh. First I heard of an actual ID string on audio CDs.
I recall in the mid '90s that the CD cataloging apps (and the pre-buyout CDDB) used a "magic number" unique to almost every CD that involved the checksums of each track and the total length of the CD. I say 'almost' because even now we still can get multiple wildly different hits on a commercial CD: "Select correct info - 'Best of Coltraine' or 'Tenjo Tenje Original Sound Track Vol 1'"...



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