Hi roadrunner,
don't waste your time (and your sound quality!) with mp3 conversions. There's a simple way for you to burn FLAC files directly to an ordinary Audio CD using InfraRecorder: Just install "
DC-Bass Source Filter" (which you can find here:
http://www.dsp-worx.de/?n=15). It's a DirectShow Audio filter which enables every capable audio program to use "not-so-common" file formats like e.g. FLAC, True Audio, WavPack, OptimFrog, etc. See the mentioned web site for details.
Caution: Even if you have a
64bit OS, do not use InfraRecorder's
64bit build, if you want to use DC-Bass Source. Since this filter is a
32bit build, InfraRecorder
x64 cannot access it, therefore you will get your well-known error "This file format is not supported.". But if you install the
x86 version of InfraRecorder and "DC-Bass Source Filter" (even on an
64bit OS), everything will be fine.
There are two minor problems within this solution:
1) The first drawback is the lack of CD-Text creation from the FLAC tags. But in your car that surely is something you can live with...
2) This only works if you have a single FLAC file for every track. If you have a large FLAC file for a whole CD and the correspnding CUE file, InfraRecorder will fail to create the proper CD tracks. It will simply write the whole album as one track on the CD. But that's "by design", since it cannot cope with CUE files. I haven't found a solution for this yet, but there are "mightier" programs which can do that easily. Google is your friend, since I don't want to advertise other CD writers on the InfraRecorder forum.
I hope this will save you a little time.
Cheers!
Ralph