My experience (see earlier thread on this) suggests that there are several variables involved here. The CD writer, the type of blank CD-ROM (they vary in the dye type they use - silver, gold, green, blue...) and the playback machine. I suspect that the power of the laser used to both write and then read back the digital pits on the blank plays a part (maybe in car players have been a bit slack in conforming to the official CD Red Book standard) and that car playback machines can be a bit marginal at times. Generally, any CD-R I record that gives problems in car is fine on the various domestic playback machines I posess, which suggests that the problem's not necessarily with my CD Writer (although this may play a part of course).
For what it's worth, I get best results in my Clarion 6 disk changer unit with green and gold dye blanks - silver blanks quite frequently refuse to play completely or are prone to skipping. Trial and error is required here, but my advice is to find a blank that works for your particular combination of burner and playback machine and stick with it.
I note from you question that you "have had countless CD gifts from friends with cheap CDRWs and the CD's never play in any other machine than the original recording one". I'm probably teaching my granny to suck what she shouldn't, but you should bear in mind that your in car player is unlikely to support the CD-RW format as opposed to standard CD-R (CD-RW's can be re-recorded multiple times while CD-R's are 'one shot' recording media). Make sure your friends give you CD-R disks, not CD-RW.
Boost is correct in suggesting that you should ensure that the disk is closed by your burning software as your in car machine is also unlikely to be able to handle multi-session recordings, so the disk at once option is indeed a good idea.
Phil T
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