I use USB 3.0 128gb flash drives all the time. The key is to format the "sticks" correctly.
I recommend you format the drive FAT32.
Here is my cheat sheet for BMW
FAT32 - Works Great - 64 gb is the largest I have personally tried
exFAT - Works Great - 128gb is the largest I have personally tried
NTFS - Will not work at all!
ext3 - Will not work at all!
ext4 - Will not work at all!
HFS+ - Will not work at all!
HFS+ - Journaling - Will not work at all!
RSX-11 - RSTS - Can't fit an RL01 into a USB slot
CP/M Micropolis Double Sided Double Density - No luck so far
Apple 13 and 16 sector 5-1/4 - No luck so far
Here is the list of Sticks available on Amazon that I have personally tried:
PNY Turbo 128GB USB 3.0 Flash Drive - P-FD128TBOP-GE
SanDisk Cruzer Fit 64 GB
SANDISK SDCZ60-128G-A46 Cruzer Glide
Transcend 64GB JetFlash 710 USB 3.0 Flash Drive (TS64GJF710S) - This is my current favorite, I have ordered about 20 of these.
If you need anymore information I am happy to help.
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