[Biturbos4] CD Player Troubles
ti at amb.org
Thu Jan 8 14:20:06 EST 2004
David Bray writes:
> 1. The CDRs I made are in standard CD-Audio (WAV) format so this is NOT a
> case of trying to access a non-existent MP3 decoder in the S4's Bose stereo.
Just a minor (if irrelevant) correction... What's on normal audio CDs
are not WAV files. It's raw headerless PCM, and contiguous from
beginning to end. There is a TOC section in the beginning that describes
the starting locations of each track, and other info. "WAV" connotes
Microsoft RIFF headers, which do not exist on an audio CD.
I know, picky, picky. :)
> 2. This CDR, AND many others I've made, have played fault-free in my car.
> In fact, on the day in question, it had been playing for over 70 minutes
> flawlessly. I am aware of the lower reflectivity of CDRs vs. pressed CDs,
> but if it played, clearly it wasn't too low to be compatible. (BTW, CDRWs
> won't play because they have even lower reflectivity.) However, if the
> electronics in my unit have drifted "out of spec" due to age, possibly
> exacerbated by temperature and/or dampness, that is plausible.
Try playing some non-CDR (i.e., factory pressed) discs. If they work fine,
then your hypothesis is probably correct. Otherwise, your changer has
probably gone south.
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
R 1 3 5 Ti Kan
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