Cant seem to get it!!

I understand that all samples loaded into the 4000 must be wave files........I burned a few of my kits from my pc onto a cd and loaded them into the 4000.I also added a few sample loops from other songs that Ive sampled, in which I converted those into wave files as well.All my drums load correct , but when I go to load the sample loops it always says bad format or op system does not support.......am lost what am I doing wrong???

Tell me the bit depth (16 or 24bit), and the sample rate for the samples?

maybe untill you sort that out and figure out what the problem is... you could just sample into the machine via the inputs on the back.

BaileyB wrote:I understand that all samples loaded into the 4000 must be wave files........

You understand wrong.
It can read half a dozen other formats too.
This is in the manual.