The newest PS3 firmware 2.50 adds a "Scene Search" feature that displays thumbnails of a video at user-determined time intervals (1 minute, 2 minutes, etc.). You can then select the thumbnail to jump to that spot in the video. However, the feature shows as "This operation is not available here" in many of the VOBs I rip and stream.
I rip all of my DVDs using the same software and settings: DVDFab 22.214.171.124 - VOB Passthrough - Main Movie Only. This creates a single VOB that I stream from my Buffalo Terastation Live using Twonky 4.4.6.
For the VOBs that have the Scene Search feature available, I am able to advance through a movie far faster than the VOBs in which Scene Search doesn't work. In the latter, after a long FF, I may have to wait several minutes for the video to restart at the new spot. With Scene Search, the video begins to play almost immediately after advancing.
Can anyone tell me why Scene Search would be available for some ripped movies and not others? Does this have something to do with indexes that are/are not encoded into the original DVD?
Thank you in advance for your help/suggestions.