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My answer, I thought, was relative to his desire to have his music on a CD to be played in a regular CD player. MP3’s won’t, to the best of my experience, wav’s will.

I don’t even concern myself with AAC, as I abhor needing authorization and DRM.

Any CD burning software, Nero, Easy media creator, etc. that can make an Audio CD will automatically transition those files to WAVs for creation of the Audio CD during burning. You don’t even know it’s happening, it just does it. No biggie.

The downloaded MP3s from Amazon are usually 320bit or at least 192bit so when converted to WAVs for audio, there is no noticeable loss in sound quality when buring to an audio cd. Specially in a car with road noise.

My answer, I thought, was relative to his desire to have his music on a CD to be played in a regular CD player. MP3’s won’t, to the best of my experience, wav’s will.

A disk of MP3 or WAV files will not play on a regular CD player. The audio needs to be layed out on on the disk in Red Book (audio CD) format tracks with 16-bit PCM at 44,100 Hz. Now a WAV encoded exactly like that will just be laying the bitstream down in the right tracks, while most programs will convert the MP3 to that format before writing the audio tracks.

I don’t even concern myself with AAC, as I abhor needing authorization and DRM.

AAC doesn't have to be DRM. People only think that because most (not all) of the iTunes tracks are made that way. AAC as generally used is just MPEG-4 Part 3, as MP3 was MPEG-1/2 Audio Layer 3. Any additions, such as DRM, are just vendor-specific implementations. Check it out, because the quality vs. bitrate is a LOT better than MP3 (128kb AAC = 192kb MP3, but with better frequency range).