Getting glitches on all encoded mpeg with any encoder?
 

Hi, I hope someone can help me because this is extremely frustrating.

Up until recently I have been able to encode videos tompeg2 for DVD format without any problems. Now however, everything that I encode has flashes of coloured dots and small lines constantly flickering all over the video, almost like it's a dirty VHS tape.This happens if it's my own capture or a downloaded mpeg that needs converting to DVD format.

I have tried encoding with NeoDVD, TMPEG Plus, Main Concept encoder, Video Vegas 4 and DVD Architect and they all give the same result.

Has anyone else had this problem?

The things that are different now from when it did work properly, are that I have upgrade to a Pentium 4 2.53 from an Athlon XP, I have a new Radeon 9800 Pro graphics card, and I have installed Direct X 9.0a. Could any of these be the problem?

Oh, and I have tried play back of the encoded files on 4 different players.

Any help would be appreciated. I can supply pictures of the problem if needed.

Cheers.

Hi Orak,

I would suspect RAM or glitches somewhere the I/O bus :!:
Are you using the same RAM that you had in the Athlon?, or is this new RAM ?
Try re-seating each card, or remove the cards and clean the edge connectors.

-kwag

Thanks for the reply. Yes, I am using the same RAM, but it is a new Motherboard, so I suppose they might not be seated right.

What about the I/O Bus glithces, how are they caused and how do I find them?

I'll have a go at cleaning them as you say and see if that helps.

Oh, one more thing, I have got the P4 overclocked to about 2.9, could this be a cause? The RAM isn't overclocked though.

Cheers.

That could be caused by dirty contacts or not very good connection from the cards edge connectors. Re-seating them might fix the problem!I should have read that before :!:
Underclock it right now :!: That could be the root of the problem :idea:

-kwag

Yep, that sorted it. But now my PC's slower :( . Oh well, can't have everything I suppose.

Do you have any idea why this would cause a problem then?

Thanks for your help.

Orak.

When you overclock some motherboards, if their I/O subsystem is not designed to take into consideration an extra higher frequency margin, you start to get into trouble! Most probably, the problem is not your CPU, but it's the chipset of your board. I have an old 200Mhz AMD motherboard, and it's been running at ~233Mhz for over 3 years! That's my firewall/gateway, running IPCop (Linux) to share all the machines in my house. That machine has run FreeBSD, NetBSD and Linux and has never failed! I also have a PowerPC G4 overclocked to 450Mhz (from 400Mhz) running Mac OS X 10.2, and never fails. So it really depends on the motherboard design, and maybe on your CPU batch when it was manufactured. Some CPUs are very flaky, others can be really overclocked. If you're going to overclock, make sure you have the best cooling available. If that doesn't help, then forget about overclocking :wink:

-kwag

I have some decent cooling and everything else has been running fine for about 6 weeks, but this is the first time I've tried some encoding.

The board has an SIS chipset which I'm not too familiar with, so I suppose it could be that, although the BIOS of the board has some extremely useful o/cing stuff.

To be honest, I think 2.53 is fast enough anyway, I haven't 'really' noticed any difference in speed.

Once again, thanks for the help.

Orak.