Yeah happens to me every time Ive copied a sample off the internal storage and tried to do anything with it elsewhere. Wavelab freaks out on them, but it will rebuild them ok. First time I noticed this was sometime last year, copied some samples from the MPC onto an SD Card and then tried to load them into my EMU E6400, wouldn't touch them. That was when I decided I was going to have to actually sample everything into the EMU from the MPC and make new loop points/edits/etc.. Its Akai's janky way of doing headers. Dont have this problem with any wav file that uses standard metadata and info headers, whether its entered in Logic, Audio Finder, ACID, Reaper, Myriad, etc.. Take anything that's been touched by an MPC and its completely ****. They seem to open up fine in apps like Myriad and Audio Finder though, but there is no metadata shown for any of them in either app, so it looks like Akai is doing something 'their own way' that freaks out certain apps and hardware.
