Hello,
I'd like to help you out of your dream by saying that I looked things up for you, and i've loaded a fair amoint of samples from an AKAI cd rom of mine into memory. I have 128 mb ram,. when I finished loading (and thought it was enough to proove my point) I saw that i had 14 mb of 128mb left to use (so most was used).. THen I went to see into the partial mode where i saw 311 samples loaded (so that crashes the 128 samples barrier no?).. Then, I was able to rotate trough and trough and trough (all empty sample places) and i came up to 8192 (!)..
Lat's go load multikeymapped/velocity partials now

...
You have to understand that the XV-5080 actually has 2 different patch modes, 4tone mode and partial mode (wich is optimized to be the s760/akai catalyst.. Thought I once wass loading tons of wave files into my 4tone patch mode and it all worked correctly, my memory was all used and I thought I had over 210 samples loaded..
You might go over to your friend and find out what he means with "loading 128" sample.. THere are some smart mediacard limitations, but it's not really noticable..
cd