TRD images on HDD

[Adramelek]

And what is format of HDD ?
IDE medium can be formatted as FAT 16/32 or use dirrerent file system (only for ZX) ?

I just said that: "All this OS' support HDD and have they own file system." Of course it's not FAT, but some tools allow you to use FDD in MS-DOS format.

Can be same HDD used for PC and for ZX (russian clones) ?

Unreal Speccy supports real HDDs.

All disk images(TRD) is conected in one big block(file) ?

I don't think so. Why it would be like that?

Is supported SCL files ?
Any support for loading TAP,Z80,SNA ?

No, any OS have no native support of any of these files (include TRD). You can use TRD images only with help of some special tools such as TRDEXE.COM for CP/M. If you want to load TAP or SNA, you probably need to write your own software for that. Maybe somebody already did it, but I'm not sure.

Is on HDD used TRD images with different size(longer or less) than 640kB ?

TRDEXE.COM supports IMG images with size less than 640 Kb. TRD images -- standart size only AFAIK.

OK, with HDD can work only special TR-DOS roms with modified ramdisk support, but on HDD will not work software used #3D2F (as on my SPRINTER 2000 with HDD support)

You need to talk with Max Timonin about that: max_timonin@mail.ru. He's the guy who know everything about CP/M, IS-DOS, and TASiS for ATM Turbo clone.