A lot of programs don't work, and I want to figure out why.

[CritAnime]

I recall similar issues too with the 600 I owned. It would randomly crash and give errors. turned out the Max transfer wasn't set right.

[CritAnime]

should be 0x1FE00 but this has to be done when setting up the partitions I beleive. Also when you have put the value in make sure to hit enter as i forgot to do that on several occasions and it would revert back to the default.

[CritAnime]

The max transfer affects large file transfers and writes, this is what I have figured out anyway and might not be 100 percent accurate. So if the app is doing lots of large file operations it might cause it spaz out. I am sure this is down to a bug somewhere in the controller that affects newer drives. This bug never materialised when doing single file transfers though.

When transferring stuff within winuae to the cf I had no probs. once the cf hit the Amiga that's when the bugs hit. Hence the need to set the max transfer to avoid issues.

[CritAnime]

Dunno then. Although I am pretty sure you can view the setup anyway without making adjustments to the drive. Wouldn't hurt just checking and making sure that the max transfer isn't the cause.

[CritAnime]

Excellent! Glad it got resolved in the end.

If I remember correctly the max transfer 0x1fe00 forces the controller to split large operations into 128k chunks. Thus avoiding the bug.