Today I learned Rockbox will not work with my Crucial 446gb mSata v5.5. IPod reports ata error. Apparently this is a known issue for mSata.
The Tarkan+Lexar 256gb Sd v7 locked up at 29249 songs and would not restore. This is the fewest number of songs loaded before a lock up, and since I coded this entire test library to 128.mp3 files, it suggests the instability issue is not related to the number of songs or the gb loaded. I am beginning to wonder if i have a bad Lexar card. Oh this is painful.
Sorry man to hear about all the issues. If you can still return those drives, I would say just get a couple of 256GB CF cards and call it a day.