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Matrox RT2000...DV or MPEG-2?

COW Forums : Matrox Video Systems

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Rich RubaschMatrox RT2000...DV or MPEG-2?
by on Mar 3, 2005 at 3:25:58 am

On a Windows Premier system with a Matrox 2000 card, a friend has been digitizing and creating programs with the High Quality MPEG-2 compressor with the card. I noticed renders were pretty long (even simple dissolves with a title on top) and playing on the timeline was a little sluggish.

Would using the DV codec, which would increase hard drive requirements and file sizes, speed things up a bit?

Just wondering,

Rich Rubasch
Tilt Media


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Aaron StraderRe: Matrox RT2000...DV or MPEG-2?
by on Mar 3, 2005 at 4:59:34 am

I'm not even sure if you're using the card at the MPEG2 settings you describe.

If you went with the Matrox DV settings, it WILL be much faster.

MPEG2 rendering on the fly requires a completely different kind of hardware than what the RT2000 uses.

-Aaron

http://www.stopfcc.com/
Knock it off! I like my radio and television the way it is...


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Rich RubaschRe: Matrox RT2000...DV or MPEG-2?
by on Mar 4, 2005 at 4:19:33 am

Well in the project presets there certainly is two Matrox MPEG-2 settings one normal and one high quality. Just above that are settings for DV. I think since they only have a 60 gig hard drive the dealer suggested they work with an MPEG-2 workflow to save disk space, while compromising on performance. I'm certain it is the Matrox RT2000 card.

Hmmm.

Rich Rubasch
Tilt Media


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Rich RubaschRe: Matrox RT2000...DV or MPEG-2?
by on Mar 4, 2005 at 4:26:27 am

Yup, the Matrox site confirms that the card can either run with MPEG-2 files of DV but doesn't mention performance. Except that MPEG-2 and DV cannot be mixed on a timeline without rendering.

Rich Rubasch
Tilt Media


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Aaron StraderRe: Matrox RT2000...DV or MPEG-2?
by on Mar 4, 2005 at 6:06:29 am

Well, I know that the old Digisuites put out MPEG2 iframe video, which is a higher compressed level of MPEG2. It was a supported feature briefly on this card. But in general, you need to distance yourself from the MPEG 2 editing and stick with DV based. You'll sacrifice hard drive space to be sure, but stability, quality, and performance should be much bigger considerations over hard drive space.

You CAN get more hard drives.



-Aaron

http://www.stopfcc.com/
Knock it off! I like my radio and television the way it is...


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Michael webbRe: Matrox RT2000...DV or MPEG-2?
by on Mar 4, 2005 at 5:34:04 pm

You will have to remember when the RT2000 came out drives fast enough and large enough for DV work were more expennsive and HAD to be raided. the Mpeg2 option was reccommended for those who's drives were too slow for DV. When the RT2000 was introduced in 1999/2000 the ATA drives were ATA33, so a lower bandwidth soulution was needed to match all the 500mhz PIII's that were out there. By editing in the Mpeg2 mode you lost all the real time capabilities that the RT2000 offered, so as drives got better the option disappeared with the newer cards(RT2500/RTX100). The Mpeg 2 the RT2000 edits in is different than the Mpg2 required for creating DVD's so you will get no advantage and it will still have to transcode the saem as from the DV based files.

Mpeg actually is more compressed than DV,so it does take up less space on the hard drive and reqires less hard drive band width but since is more compressed it requires more work from the CPU to uncompress each frame when it comes time to render slowing things down.

For the most part the RT2000 was designed and optomized as a DV solution and works best that way, the Mpeg2 option was an add on to make it more attractive to the user and systems of its time for it's time (5 years past, an eon in computer time)

Michael Webb
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