Re-authoring DVD from DTS track audio to AC3

EpheMeroN · 26th March 2012, 21:47

I have a DVD that I am backing up. It's just over 5gb complete w/ DTS audio. If I transcode the DTS audio to AC3 it'll be able to fit perfectly on a DVD-5 disc without having to re-encode the video.

I want to know if this is possible? I know I can demux the audio using PgcDemux, but will there be issues with re-authoring? Will I need to edit any files in PgcEdit or will just replacing the dvd files with a muxed VOB set w/ the AC3 suffice?

r0lZ · 28th March 2012, 06:50

You can NEVER simply overwrite the VOB files manually, as the pointers in the IFOs will be wrong. And if you overwrite the IFO as well, you will lose the original navigation commands and other stuff.

Remux your title and the AC3 stream with muxman, and use PgcEdit to import the remuxed title. Select the original title in the left pane, and use File -> Replace VTST Titles. (PgcEdit will keep the original navigation stuff unchanged, and import the tables from the new IFO.)

EpheMeroN · 28th March 2012, 19:09

If I do what you say, do I need to have the chapters already imported into the muxed titleset from MuxMan? Or will PgcEdit add the chapter points from the original IFO files?

r0lZ · 29th March 2012, 08:24

The chapter points must be present in the remuxed title, because PgcEdit cannot create them. More precisely, to import the title with PgcEdit and keep the original chapter menu working as it should, the imported title must have the same number of cells than the original. If for any reason it's not the case, PgcEdit will recreate one chapter per imported cell, and you will have to modify them or edit the chapter menu manually to suit your needs.

In your case, you should export the celltimes.txt with PgcEdit or PGCDemux, and import it in muxman.

26th March 2012, 21:47	#1 \| Link
EpheMeroN EphMan Join Date: May 2004 Posts: 737	Re-authoring DVD from DTS track audio to AC3 I have a DVD that I am backing up. It's just over 5gb complete w/ DTS audio. If I transcode the DTS audio to AC3 it'll be able to fit perfectly on a DVD-5 disc without having to re-encode the video. I want to know if this is possible? I know I can demux the audio using PgcDemux, but will there be issues with re-authoring? Will I need to edit any files in PgcEdit or will just replacing the dvd files with a muxed VOB set w/ the AC3 suffice?

28th March 2012, 06:50	#2 \| Link
r0lZ PgcEdit daemon Join Date: Jul 2003 Posts: 7,469	You can NEVER simply overwrite the VOB files manually, as the pointers in the IFOs will be wrong. And if you overwrite the IFO as well, you will lose the original navigation commands and other stuff. Remux your title and the AC3 stream with muxman, and use PgcEdit to import the remuxed title. Select the original title in the left pane, and use File -> Replace VTST Titles. (PgcEdit will keep the original navigation stuff unchanged, and import the tables from the new IFO.) __________________ r0lZ PgcEdit homepage (hosted by VideoHelp) BD3D2MK3D A tool to convert 3D blu-rays to SBS, T&B or FS MKV Last edited by r0lZ; 28th March 2012 at 06:53.

29th March 2012, 08:24	#4 \| Link
r0lZ PgcEdit daemon Join Date: Jul 2003 Posts: 7,469	The chapter points must be present in the remuxed title, because PgcEdit cannot create them. More precisely, to import the title with PgcEdit and keep the original chapter menu working as it should, the imported title must have the same number of cells than the original. If for any reason it's not the case, PgcEdit will recreate one chapter per imported cell, and you will have to modify them or edit the chapter menu manually to suit your needs. In your case, you should export the celltimes.txt with PgcEdit or PGCDemux, and import it in muxman. __________________ r0lZ PgcEdit homepage (hosted by VideoHelp) BD3D2MK3D A tool to convert 3D blu-rays to SBS, T&B or FS MKV Last edited by r0lZ; 29th March 2012 at 08:29.

28th March 2012, 19:09	#3 \| Link
EpheMeroN EphMan Join Date: May 2004 Posts: 737	If I do what you say, do I need to have the chapters already imported into the muxed titleset from MuxMan? Or will PgcEdit add the chapter points from the original IFO files?