The VBR debate
So, the investigation forges ahead. SPG, I think you're right about the potential for degradation in quality, but like you said, it depends heavily on the encoding engine, and furthermore, on the material being encoded. I harken back to when DVD players were first becoming available, and the DTS vs. Dolby Digital debate was still a hotbed of argument. What it all came down to was the equipment the studio used to encode the soundtrack, and the material itself. Personally, I like MP3 for the ability to have quite a bit of material at my disposal, quickly and easily. I love this ability for broadcast...I take my TiBook with me to the studio, plug in one miniplug, and I can run my entire show with a few clicks and keystrokes. But when I get home...that's a different story. If I'm cleaning, or working around the house, it's nice to put on a mix, let iTunes pick from my songs, and just have music. But if I'm in a listening mood, where my sole purpose is to HEAR, I still think even the best-quality MP3 doesn't quite live up to vinyl or a well-produced CD.
And the whole 192 kbps VBR = 160 kbps CBR thing was just an example. Your results may vary. 🙂
In the interim, however, I'm eager to really give this a run for its money, test if VBR really is worth the hype. I'll keep everyone "posted." (rimshot)