Artifacts already on hd

[rolandb5]

If I rip dvds to my hard disk. And burn them afterwards, artifacts appear on de dvd. Some little cluster of blocks a few times per movie.

First I thought they appeared on my dvds, because I use cheap media. But after inspection, they also appear on the image on my hd.

It certainly isn't my dvd-rom drive cause, the same effect appears on downloaded images.

What could be my problem. Does somebdy else have it?

[killingspree]

did you just do an iso copy (1:1) or just strip unwated files with ifo edit or did you reencode the movie with programs like tmpegenc or cce? If you did some reencoding to lower bitrates artefacts are always going to be there (less bitrate - less information ... )

regards
steVe

[rolandb5]

No they also appear when: Mastering in Maestro, ripping, unpacking and encoding

But this is the weirdest problem. If I unpack files from an iso, the blocks appear in the files. If I do it again from the SAME iso, nothing changed. They're suddenly gone.

They just seem to appear with file writing/moving operations

Breaking my brains....

[Jstic]

Had similar problem and traced it to the Serial ATA chip on my motherboard. Do you use any serial ATA drives or converters?

[markrb]

Sounds like a hardware issue. Try a new cable and also try a deep scan of the drive for errors.

Is this a RAID? Do you have a VIA chipset?
If you do check out the former www.viahardware.com forum in the tweak
section and look up the latency patch. There is an occasional known issue with large file copies on a Via chipset board.


Mark

[rolandb5]

I did two things. I ran memtest and found a lot of errors in my memory. It wasn't one bank that was corrupt or one slot. The combination of four banks created errors. Because I find 128*3 MB enough, I decided to leave one bank out.

I also have that VIA chipset, so I installed the Latency patch.

I unpacked one movie from an image file. Burned it. Watched it ( very irritating to watch a whole movie, just to detect errors). No stupid clusters of blocks.

I hope one of these solved the problem and that I just wasn't lucky this time. Thanks for the help