Current firmware is using FAT for the file-system, so you have the usual 8.3 DOS file name structure. 8 characters for filename, 3 for extension. I also had to rename all my ADFs to short form reasonable names. It's a thing we have to live with.
Future firmwares will most likely adhere to the current standard. The way I see it, longer filenames are problematic because of two reasons:
1. The OSD cannot display lines longer than 16 characters
2. The PIC micro has very little memory, and a buffer for a long file-name would take a considerable chunk off it.
There *could* be some improvements in an upcoming ARM microcontroller replacement, should it support FAT95, but you'd have to buy the upgrade board when it's made available. One can only speculate at this stage, until a release is made public.
Cheers!
Edwin
