radish wrote: > basmac;237358 Wrote: >> Here are the filesize numbers using iTunes for conversions >> Internal Sony >> Original aif 12058704 to m4a 4744079 back to aif 12058648 >> External Pioneer >> Original aif 12058704 to m4a 4738583 back to aif 12058648 >> >> I suppose I will leave it at that and assume I can't hear any >> difference. >> Just wanted to make sure I wasn't missing out on a few bits of >> information, >> >> thanks > > The AIFF size is purely dependent on the length of the audio, nothing > else (an entirely silent file of the same length would also be 12058704 > bytes). The M4A size is dependent on content (because it's compression > ratio will vary with different input signals). Thus, what you have > proven is that while both drives know exactly how long the track is > (and agree on that) they disagree on what the audio data actually is. > This is exactly why people use things like EAC to get more reliable > rips - consumer stuff like iTunes doesn't try to work around the > differences in the hardware. One (possibly both) of your rips is wrong, > and there's no easy way to tell which.
m4a can contain content other than audio (tags, images, etc.) so you can't compare size directly. R. _______________________________________________ ripping mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/ripping
