Re: New WarpVision WOW!

Ruediger Ihle wrote:
On Wed, 2 Aug 2006 16:15:26 UTC, "David T. Johnson" <djohnson@xxxxxxxxxxxx> wrote:

For example, the Windows software on a newer driver will not play some DVDs unless the 'TV Out' is disabled on the video
card.

AFAIK, in order to fullfill the requirements of the DVD forum /
DVD copyright association, even analog output of copy protected
DVD material is only allowed when MacroVision analog scrambling
is applied. This is supposed to prevent recording the material
using conventional VCRs. In the past nobody really cared about
this, but it looks like times have changed... I seriously daubt,
that this has anything to do with the drive. It's most likely
the player software.

What I've seen is that the drives seem to need to be initially ' enabled/activated' in Windows before they will play DVDs in OS/2.


I have an older Samsung DVD-ROM drive that doesn't have the
apparent limitations of newer drives.

Drives manufactured before end 2000 use the "RPC1" protection
scheme. This means, that the region check has to be done in
the playback software. This can easily be tweaked. Most soft-
ware vendors store the information somewhere in the registry
and don't even make it very complicated to find it.

All drives sold after 2000 use the "RPC2" scheme. In this case the drive itself performs the region check and limits
the number of region changes. This makes it much more com-
plicated to circumvent. Some drives have a hidden jumper,
others require firmware patches and there are also some that use vendorspecific/undocumented SCSI commands to disable this function.

What I've thought might be going is that the drive can only be 'enabled/activated' in Windows for DVD playing since there is AFAIK no licensed DVD software player for an add-on ATAPI/IDE DVD drive other than in Windows, (or maybe Mac if Macs don't use special mac-only hardware.) The drive perhaps then assumes that if someone is trying to use the drive to play DVDs without Windows, they are using some sort of unlicensed player or something and the drive refuses to read them. Now, perhaps the the ONLY thing the new drive needs is to have its region set and perhaps there is some sort of OS/2 (or at least non-Windows) regionset utility that will do this without using the drive first on a Windows system. Maybe...but I have not found anything that would work for me other than to use the drive first with Windows. I see a lot of people having difficulty playing DVDs on OS/2 or eCS and I think many of these problems might be due to their drive hardware not being ready to play them rather than their OS/2 warpvision software. I have not yet seen a drive that would not play DVDs in OS/2 properly, once it had been first used with Windows, though, so that's sort of good news. I half-way expect, though, that soon drives will only play DVDs if they are being used on a particular version of Windows, but maybe I am overly pessimistic.


--
Posted with OS/2 Warp 4.52
and Sea Monkey 1.5a
.

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