Those players are very RIAA friendly. They don't let you take music off the hard drive. The Pioneer will only rip off a CD, and at that, only a CD that's in CDDB, not a custom burned CD.

The Sony unit seems to let you load tracks off the memory stick. Also, the unit at CES only ripped at 2X. The rep pointed at some strange port and said it was USB, so maybe you'll be able to do things with that.