What are your Project settings, the Project Preset that you used?
What are the FLV settings that you are using?
Exactly how are you Importing the .VOB?
For more background on .VOB files, and the enclosed MPEG-2 AV files, please see this ARTICLE.
Converted VOB to AVI using NCH Prism and import is now perfect. Many thanks.
Please tell us about both the settings chosen for those converted AVI's, and also the Preset for you Project. Those bits of info can be very important.
In NCH Prism I select the "Add DVD" option.
Output format "AVI", Encoder Options - Video compressor "DV Encoder PAL", Sound compressor "DV Audio", Sound format "48,000 Hz Stereo".
Video Output options "Tick, Resize Video" -> "Shrink or Enlarge ... 720W x 576H". "Tick, Change framerate 25.00"
Works an absolute treat so far.