Quality slider - 70 or 100?

[dmz]

Hi,
What are peoples thoughts on the setting for the quality slider? It defaults to %70 and whilst it may seem intuitive to simply set it to %100 every time, the user guide suggests that it may impact on 'fluid motion'. Has anyone done any definitive testing on the best use of this option?

Thanks

[kebrinton]

Hi dmz --

jchunter has probably done testing.

I always move the slider to 100%. Can't see any reason not to, at this stage. Later, if my video file is too big to fit onto a DVD, I go to DVD Shrink and let it reduce it by just the amount necessary to fit.

Alternatively I might try serial bitrate settings starting at 8264 (my favorite) and going down to 8000, 6000, etc. till things fit. Not too sophisticated an approach.

Keith

[MikeGunter]

I always move the slider to 100%. Can't see any reason not to ...

Hi Keith,

Probably not, but the key setting is at 70 for a reason. In most circumstances, (I have to give myself a little out ) one will get nearly as good if not as good at 70.

There is more quantatization, but that doesn't mean it will do much.

Mike

[Masami]

Moving the slider to %100 DOES increase the quality, but it's at a point where any noticable difference is trivial if anything.

It actually does not increase the file size, only the KBPS does that.

What it does do however, is increase the chance of dropped frames, causing either stuttering video or else A/V sync issues.

If you're not suffering from either of these problems, then you might as well stick with 100%, but if you start encountering problems like these, then drop it back down to 70%

[GeorgeW]

What it does do however, is increase the chance of dropped frames, causing either stuttering video or else A/V sync issues.

This is only if you are capturing and converting to mpeg on the-fly. if you have a video already on your hard drive, then this should not increase the chance of dropped frames.

Whether or not the transcode buffer prevents dropped frames will depend on how you are feeding the video into your computer. But if your buffer fills up, there can be a slight "pause" or hiccup where it stopped/started capture. And if you are feeding an analog source into an analog-to-dv converter, there won;t be any way to stop the analog source when the transcode buffer is being flushed -- causing a loss in that section of your input video.

[Wairoakid]

I shifted the slider to 100 for a 17min slide to MPEG conversion and kept getting "insufficient memory" errors.

When I dropped it back to the default 75 I could make the MPEG file