Digital Drive

A bogus test for a CD player

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"It's a CD-R and it has no less than 143 mp3 files on it"

This is a bogus test for a CD player. It might be appropriate for a drive used in a computer.

MP3s are not stored on disk in the same format as CD audio. Data CDROMs have an extra level of error correction. Therefore, data disks are substantially more reliable than CDs. When a drive encounters a bad data disk it slows down its read rate drastically to accommodate the complex error correction required to recover data. However, MP3s are already compressed down to a low data rate. So it is entirely possible to play MP3s in real time on disks that are horribly damaged, although similar damage with a CD audio disk would result in something completely unplayable. This is more about the data format than the player.


Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar



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