TakuSkan
3rd January 2006, 22:26
Have I been making a huge newbie mistake in the past few weeks? I've been renaming .VOB files from DVDs I've created in the past to a .MPG extension, and then using DVD authoring software like NeroVision Express and ULead DVD Workshop to re-author my old video data to modified DVD-Video DVDs.
I've recently come across information on software and procedures for converting those VOB files to MPEG2 complient MPG files for authoring DVD-Video.
Somewhere along the way I found that GSpot identified VOB files as being encoded with the MPEG2_Video codec and the files being, "already DVD format." GSpot also identifies the codec my PVR-150 capture card uses to encode the MPG/MPEG2 files creates as the MPEG2_Video codec, and shows the files as being "already DVD format."
At some point I thought I read where I could just change the extension to get DVD Workshop to recognize and author the 'converted' files, as it doesn't recognize VOB files like Nero will. I've done this for a couple of weeks at this point, and have created a number of DVDs using the procedure with seemingly no ill effect.
Can someone tell me what hazards I may have created here, or what ones I may potentially run into at some point going this route? It seems what I should be doing is using DVDDecryptor to create M2V & WAV or AC3 files, and then using something like TMPGEnc to combine them into a proper MPEG2/MPG file.
However I've run into problems with TMPGEnc re-encoding the MPEG2_Video codec compressed MPG files my PVR-150 creates, and have found that in some instances, specifically when running TMPGEnc on captures from VHS tape with poor source resolution, that I loose significant quality in the process. The method of just renaming the .VOB extension to .MPG seems by definition lossless.
As a secondary question here, I've been wondering if there's any software that, unlike NeroVision Express and DVD Workshop, will author and burn the those VHS PVR-150 capture files directly to DVD-Video without re-encoding them.
Any advice on procedures that, and software/procedures on how to go about using VOB files properly in this context would be greatly appreciated.
Thx,
TS
I've recently come across information on software and procedures for converting those VOB files to MPEG2 complient MPG files for authoring DVD-Video.
Somewhere along the way I found that GSpot identified VOB files as being encoded with the MPEG2_Video codec and the files being, "already DVD format." GSpot also identifies the codec my PVR-150 capture card uses to encode the MPG/MPEG2 files creates as the MPEG2_Video codec, and shows the files as being "already DVD format."
At some point I thought I read where I could just change the extension to get DVD Workshop to recognize and author the 'converted' files, as it doesn't recognize VOB files like Nero will. I've done this for a couple of weeks at this point, and have created a number of DVDs using the procedure with seemingly no ill effect.
Can someone tell me what hazards I may have created here, or what ones I may potentially run into at some point going this route? It seems what I should be doing is using DVDDecryptor to create M2V & WAV or AC3 files, and then using something like TMPGEnc to combine them into a proper MPEG2/MPG file.
However I've run into problems with TMPGEnc re-encoding the MPEG2_Video codec compressed MPG files my PVR-150 creates, and have found that in some instances, specifically when running TMPGEnc on captures from VHS tape with poor source resolution, that I loose significant quality in the process. The method of just renaming the .VOB extension to .MPG seems by definition lossless.
As a secondary question here, I've been wondering if there's any software that, unlike NeroVision Express and DVD Workshop, will author and burn the those VHS PVR-150 capture files directly to DVD-Video without re-encoding them.
Any advice on procedures that, and software/procedures on how to go about using VOB files properly in this context would be greatly appreciated.
Thx,
TS