If you haven't tried them, you need to...

It's only one person's opinion, but if your CD player has the capability to decode HDCDs and you're not taking advantage of it by buying HDCDs, then shame on you. HDCDs add a level of detail that red book CDs just don't have. And don't overlook CDs with SBM (Sony Bit Mapping); you can find them hiding in the store racks if you look. Also, JVCXRCDs are out of this world, taking the detail to a whole new level. They cost more, but I think they're well worth it. I have the Eagles' Hell Freezes Over, and it's great. If I come across any of my favorite groups in any of the above formats, I buy it, even if I already have it in my library. They're that much better. Don't know what trips your trigger, but I recommend you give a listen if you're not familiar with these formats.

If anyone has stumbled across something else out there that I should listen to, please let me know.