Skipping frames (video objects)

[KMJvet]

A stuttring playback issue (similar to that discussed in Toast 7 forum for EyeTV files) happens for me in Toast 8 from vob files that weren't from Eye TV. Whethter this is different completely or a sign it's not EyeTV, I don't know.

 

Anyway, I was working with vobs in order to get separate titles and a menu. I created a DVD iso image in Visual Hub. This program seems to create the best quality DVD from the particular DIVX files I started with. This iso file or DVD created from it plays fine. But VH doesn't create DVDs that have menus and so runs all the titles into one. I believe it uses ffmpegx. It's good for not getting the audio and video out of sync when re-encoding from DIVX to DVD. So, I took the VIDEO_TS and exported each title to a vob using DVDxDV. This doesn't do any re-encoding. These vobs play fine in VLC.

 

Then I imported the vobs into Toast 8, made a menu, went to custom and set it for never re-encode.

It does burn a playable DVD, but it DOES re-encode even when set to "never." And it plays back (using DVD player on Apple or my Panasonic DVD player) with a "stutter." It's not horrible, but about every minute it skips a frame or two. I don't know that these are really "frames" in a DVD. Are they called video objects maybe. In any case, I hope the description makes sense as to the behavior.

[tsantee]

Mount the ISO image and choose DVD in the Toast Media Browser. You should see how you can drag the titles from the .iso to the Toast Video window. Toast extracts the titles in MPEG format, writing them to the Converted Items folder. This is what Toast will use to author and burn your DVD. There won't be any re-encoding as long as the source MPEGs meet the video DVD spec.

[KMJvet]

Mount the ISO image and choose DVD in the Toast Media Browser. You should see how you can drag the titles from the .iso to the Toast Video window. Toast extracts the titles in MPEG format, writing them to the Converted Items folder. This is what Toast will use to author and burn your DVD. There won't be any re-encoding as long as the source MPEGs meet the video DVD spec.

 

Thanks. Is there a way though, specifically to make it not re-encode when working with VOBs, rather than ISO images. Using VOB's what's allowing me to split the big title back to it's episodes and why I wanted a menu. The ISO just has the one single title and so I assume the mpeg toast extracted won't be splitable as is right?

[tsantee]

Thanks. Is there a way though, specifically to make it not re-encode when working with VOBs, rather than ISO images. Using VOB's what's allowing me to split the big title back to it's episodes and why I wanted a menu. The ISO just has the one single title and so I assume the mpeg toast extracted won't be splitable as is right?

Toast usually wants the video to be in MPEG2 format rather than in VOBs. You could use MPEG Streamclip to "Convert to MPEG" and drag those to Toast. But I'm not sure this will change whether Toast re-encodes the video. If Toast determines that the video is out of spec for video-DVD it will always re-encode. There are some issues - such as an odd resolution - when choosing Never Re-encode will prevent the re-encoding and Toast will author the out-of-spec DVD that may still be playable on DVD players. This is what many TiVo-to-Go folks are doing.

 

If you do have MPEG Streamclip you could use it to split the source VIDEO_TS folder contents to multiple MPEG files using Streamclip's cut and trim settings. Maybe DVDxDV did something odd to these files that is causing Toast to think they need re-encoding.

[KMJvet]

Toast usually wants the video to be in MPEG2 format rather than in VOBs. You could use MPEG Streamclip to "Convert to MPEG" and drag those to Toast. But I'm not sure this will change whether Toast re-encodes the video. If Toast determines that the video is out of spec for video-DVD it will always re-encode. There are some issues - such as an odd resolution - when choosing Never Re-encode will prevent the re-encoding and Toast will author the out-of-spec DVD that may still be playable on DVD players. This is what many TiVo-to-Go folks are doing.

 

If you do have MPEG Streamclip you could use it to split the source VIDEO_TS folder contents to multiple MPEG files using Streamclip's cut and trim settings. Maybe DVDxDV did something odd to these files that is causing Toast to think they need re-encoding.

 

 

Thanks. I'll try both those approaches. Seems like it would be nice feature to have a distinction of "don't re-encode unless it's out-of-spec" and "really never re-code, I don't care i it's out of spec or not."