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How to burn CD in DOS? 2 GB limit ? DVD crap ... (Users)

posted by DOS386, 19.12.2007, 21:22

> looked to fatplus.txt and see they use some reserved bits in FAT32
> directory entry to extend 32bit size value.

YES.

> It may work well for apps which understand it. But what will say
> scandisk or NDD to it when found that file had allocated more clusters
> in FAT chains than is marked in size filed in dir entry? I guess it
> will try to truncate file according to readed file size and
> free other clusters.

You should NOT chase obsolete low level tooks (NDD/SCANDISK/...) to FAT32+ volumes - YES, the files will get truncated, at best. Thus, you would have to split/move out those files before. Anyway, this problem is not new: old MS-DOG <= 5 era tools will trash FAT32 volumes as well s LFN's :lol3:

> For me is important to have full compatability in win98 and later.
For me it's important to get rid of MS-DOG and "later" ... future of DOS should not depend of M$ :-( Anyway, read compatibility is perfect, and probably even writing of < 2GiB files.

> Yes I already saw this new feats of 2.04 but still some people uses
> 2.03 and the most of existing sw is compiled with 2.03 libs and older.

IIRC such "big" files support means 2 GiB ... 4 GiB only ... and is badly designed, immature and unusable. Reportedly doesn't work on FreeDOS either. FAT32+ is a much better approach. I wouldn't recommend to exceed 2 GiB the "old" FAT/FAT32 way ... it can work or not. (XP itself has 4 GiB limit on FAT32 for native apps.)

> I think this new functions don't solve FS limitation but only allow work with big files on advanced OSes like on NTFS in NTVDM box (or maybe NTFSDOS).
NTVDM is an advanced OS ? :crying:

But that's what D**PP targets http://www.drdosprojects.de/forum/drp_forum/posts/6546.html :-( (OK, D**PP has some usefulness, see MPLAYER :-) - it's a problematic product with 2 very different sides :-| )

> BTW do you thing 2.04 become oficial?

No idea ... maybe there is no project goal ? Then one obviously can't finalize it :-(

> think that better way for DOS ripper/imager/burner would be to
> accept multiple files of splitted image (up to 2GB), eg.
> mydvd.iso, mydvd.i00, mydvd.i01...
1. "splitted" -> "split" (yesterday, I pointed someone else to this bug last, no idea how many times total :clap:)
2. YES, split is an alternative good idea that should be developed/kept, but not "better" that FAT32+

> But I don't trash FAT32+ idea. If kernel developers of dr/free/other
> dos will accept same API extension - function numer - parameters
> order it would be then easy to use it in new programs.
:-)

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