MPEG2 Capture Choppy with Video Studio 7SE

[WTH28211]

I posted this to the wrong forum in error.....I think it belongs here.

I'm new to the forum as I've just begun using Ulead software that came with my Firewire Card. I deal mainly with recording software (Adobe Audition) but am putting together a multimedia thing for my church and need to do some video editing.

I'm talking some samples from a DVD. I ripped files to my harddrive via DVD Decrypter and attempted to convert the TS stuff to MPEG2. Using the standard DVD decoder plugin that comes with Ulead Video 7.0SE. I loaded the MPEG2 files I plan to use. In reviewing the new MPEG2's I found that the playback is rather choppy and hard to work with. I'm wondering if I'm missing a driver or CODEC. I've downloaded and installed all the patches ULEAD has on their site for this software. Can give more details as needed. Thanks in advance.

[DVDDoug]

First, try changing the filename to .MPG from .VOB. The VOB files on a DVD use MPEG-2 encoding, so sometimes this works.

BTW - DVD Decrypter can create a VIDEO_TS folder with one-big .VOB file, which is often helpful.

Or, download the trial version of Video Studio 9. VS9 has an improved DVD import tool (on the capture screen). It doesn't always work, but if it does you can get a lossless conversion to MPEG.

I recently had a troublesome VOB file, and I was able to convert it to an MPEG with a free program called SUPER. I believe this program did re-code the file (BAD!). But, I used a high bitrate and the video quality was quite good. (The audio required me to jump-through a few more hoops.)

FYI - MPEGs are not meant to be edited. Editing them can degrade the video quality. MPEG is "lossy" compression. Any editing (other than cutting and splicing) requires the MPEG to be decoded re-coded. For example, if you make a crossfade between two MPEG files, you'll get 'blocky" video during the transition.

Even worse, MPEGs can get corrupted when they are edited. In my case, the corruption caused the dreaded 'lip sync" problem. I solved the problem by buying a special-purpose MPEG editor.

[THoff]

If you are missing a required codec, you simply won't be able to see or hear the video.

You've given us very little information about your system, so it is possible that it just isn't able to preview the video smoothly, there's no way to know.

[WTH28211]

Thanks Doug. Will try both suggestions and the software to see how it works. Can you reccomend a better technique for ripping/editing sequences that will accompany a choral performance? I understand your point now (though it didn't immediately occur to me) because the same thing happens on occaision when editing .mp3's (I now avoid that technique and edit .wav and enocode to mp3 for a streaming master).

THoff I'm using an AMD 64 3200+ with 512 MB memory and 40 GB harddrive. Fairly new technology I'm thinking I'm not limited by the computer (unless by the memory). Will follow up shortly with results. I see that "preview" modes sometimes have the choppy playback. Just to be clear if I've already decoded the files and am editing video this does not qualify as "playback"?

[WTH28211]

Rocks for Windows MP and PowerDVD but not supported by 7.0. Would be interested in your ideas about which format to edit with before enocoding to MPEG2 though....thanks.