Re: [Freedos-kernel] Hello again

2009-05-16 Thread Bernd Blaauw
Eric Auer schreef:
 Maybe we should have DVD playing software and a DVD-
 compatible version of DOSCDROAST first... :-p. And
 I repeat my earlier argument: Just split the bluray
 image into a few files, very easy :-).
   
What's DOSCDROAST exactly?

So far I'm quite happy with Blair's port of CDRKIT, with only drawback 
that we have to rely on drivers that we cannot supply and distribute 
(due to licensing matters), but that users have to provide themselves.
For the IDE/EIDE/SATA/PATA/ATA/ATAPI ASPI shim, this is ASPI.SYS by 
Oaktech. Any opensource shim or addition to UIDE.SYS is not known to me, 
and at least mr Jack R Ellis isn't too much a fan of ASPI due to 
personal reasons so he's not inclined to add that to his driver.
For other technologies, you'd usually need to load a driver for the mass 
storage controller (be it USB, FireWire, SCSI, whatever) which 
implements SCSIMGR$ blockdevice. This seems to be 3rdparty in all cases. 
Additionally you'd need a cd-rom driver also that chains to the SCSIMGR$.
No opensource version of this is known to me, think there were plans for 
ATAPICDD in the past to have this.

As for GENISOIMAGE (mkisofs basicly, creates ISO out of directory tree) 
I've finally found the -split-output option, which should result in 
FDBASECD.0[01..99], consisting of 1GB files each,  I think, rather than 
FDBASECD.ISO
The, through ASPI/SCSI, recording software WODIM should happily accept 
this .001 file and appends all further parts automatically on the same 
session (according to documentation, not tried yet).

Jason Hood's OMI program is able to store entire DVD/Blueray on harddisk 
as a collection of 1GB files if the file system has issues with larger 
files. However it seems to be a custom format, and further usable only 
by shsudvdhd disk mounting utility.
I wonder if Jason's programs (OMI, SHSUCDHD) could be made compatible 
with GENISOMAGE output or WODIM's expected input when considering split 
files.

Would MPXPLAY support DVD somehow maybe? I know of no DOS players other 
than that 1minute-or-so trial program at 
http://www.freeweb.hu/doscdroast/dvd4dos.htm

Have some developers vanished completely btw? Not seen any activity by 
Arkady for ages :)

Bernd



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Re: [Freedos-kernel] [PATCH] fix to FCB fix

2009-05-16 Thread Bart Oldeman
2009/5/15 Kenneth J. Davis jere...@fdos.org:
 Thanks, saved me some time further examining it.  Explains why 0 was
 being passed in.  Reviewing it further, I should have caught that.  I
 still haven't found any programs other than old GEM that use FCBs for
 more than volume label, but its a bit hard to query for since its not
 something that is usually advertised and FCBs usage was already
 deprecated by the time I started programming.

Yes, you pretty much have to look for programs from 1981/1982; MSDOS
2.0 was released in February 1983.
And most hobby programmers used other computers anyway.

One example however: visicalc for sure uses FCBs: download here:
http://www.danbricklin.com/history/vcexecutable.htm

Bart

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