Here you can post about Gufiak firmware.
Also I think you can help him. I can help with subtitles fonts for all codepages (except 1251).
1251 (cyrillic users) can help him with russian menu and fonts.
1250 users can help him with some 1250 languages translated menu.
1257 > I know Raul Oja translated the Pioneer menu for estonian. Here is the Menu translated in estonian: [attachmentid=1241]

You can work and cooperate here. Not just asking for requests and bug reports.

enjoy,
Mtz

Dear Mtz,

Here is my Russian menu firmware for Pioneer-575A, based on Your Pioneer575_1251_v5_Mtz firmware.
The only thing I am asking is that Russian-speaking people will test it and tell me about all the errors and all their notes will be accepted.