does using VOB2MPG decrease quality?

[roybj]

im using VOB2MPG to create one mpeg file from my dvd. i get a file around 2GB from my ~4GB dvd. doesnt this effect quatily?

thanks

[Baldrick]

no, it doesn't reconvert any video. but it doesn't not work with all dvds. have you played the mpg? is it the entire film?

[roybj]

so assuming ill watch the file and everyhing i want is there i should be fine (quality wise) right?
btw, its a simple dvd (converted from my 8mm).
no angles or anything fancy.

thanks for the most quick reply!!!

[ChrissyBoy]

Can you post your log file?

[roybj]

heres the log file:

*******
************************ SYSTEM INFORMATION ************************
***************************** VOB2MPG

Name: VOB2MPG
Title:
Version: 2.1.0.0
Executable: C:\Program Files\BadgerIT\VOB2MPG\VOB2MPG.exe
Executable size: 636 KB
Executable size in bytes: 651264
Executable CreationTime: 16/01/2006 08:30:20
Executable LastWriteTime: 16/01/2006 08:30:20
Executable LastAccessTime: 18/01/2006 21:25:10
****************************** Drives *******************************

DeviceID: C:
FileSystem: NTFS
Size: 37.2 GB
FreeSpace: 6.30 GB

DeviceID: D:
FileSystem: NTFS
Size: 37.2 GB
FreeSpace: 1.70 GB

DeviceID: E:
FileSystem: FAT32
Size: 19.5 GB
FreeSpace: 3.21 GB

DeviceID: F:
FileSystem: FAT32
Size: 17.7 GB
FreeSpace: 1.84 GB

************************************************** ******************************** END OF SYSTEM INFORMATION ********************

********************** Input Folder *******************
23:26:51: Volume in drive G is LOGICAL VOLUME IDENTIFIER
23:26:51: Volume Serial Number is
23:26:51: Directory of G:\VIDEO_TS
23:26:51: 01/11/2006 10:34 AM <DIR> .
23:26:51: 01/11/2006 10:34 AM <DIR> ..
23:26:51: 01/11/2006 10:34 AM 12,288 VIDEO_TS.BUP
23:26:51: 01/11/2006 10:34 AM 12,288 VIDEO_TS.IFO
23:26:51: 01/11/2006 10:34 AM 40,960 VIDEO_TS.VOB
23:26:51: 01/10/2006 08:52 PM 88,064 VTS_01_0.BUP
23:26:51: 01/10/2006 08:52 PM 88,064 VTS_01_0.IFO
23:26:51: 01/10/2006 06:51 PM 1,061,519,360 VTS_01_1.VOB
23:26:51: 01/10/2006 06:51 PM 1,061,519,360 VTS_01_2.VOB
23:26:51: 01/10/2006 06:51 PM 1,061,519,360 VTS_01_3.VOB
23:26:51: 01/10/2006 06:51 PM 1,061,519,360 VTS_01_4.VOB
23:26:51: 01/10/2006 06:51 PM 443,908,096 VTS_01_5.VOB
23:26:51: 10 File(s) 4,690,227,200 bytes
23:26:51: 2 Dir(s) 0 bytes free
23:26:51: G:\VIDEO_TS>

23:40:16: ffmpeg version CVS, build 3276800, Copyright (c) 2000-2004 Fabrice Bellard
23:40:16: configuration: --enable-a52 --enable-gpl --enable-memalign-hack --disable-debug --enable-pthreads
23:40:16: built on Nov 9 2005 11:51:11, gcc: 3.2.3 (mingw special 20030504-1)
23:40:16: inputduration4logo: 0
23:40:16: Input #0, mpeg, from 'C:\DVD Center\ConverterOutput\VTS_01.mpg':
23:40:16: Duration: 00:00:29.6, start: 0.160889, bitrate: 1266987 kb/s
23:40:16: Stream #0.0[0x80]: Audio: ac3, 48000 Hz, stereo, 256 kb/s
23:40:16: Stream #0.1[0x1e0], 25.00 fps: Video: mpeg2video, yuv420p, 720x576, 4710 kb/s
23:40:16: Assuming PAL for target.
23:40:16: Output #0, dvd, to 'C:\DVD Center\ConverterOutput\VTS_01-fixedPTS.mpg':
23:40:16: Stream #0.0, 25.00 fps: Video: mpeg2video, 720x576, q=2-31, 4710 kb/s
23:40:16: Stream #0.1: Audio: ac3, 48000 Hz, stereo, 256 kb/s
23:40:16: Stream mapping:
23:40:16: Stream #0.1 -> #0.0
23:40:16: Stream #0.0 -> #0.1
23:47:06: frame=180792 q=80564.7 Lsize= 4478044kB time=7227.0 bitrate=5076.0kbits/s

23:47:06: video:4157849kB audio:225977kB global headers:0kB muxing overhead 2.149226%

********************** Output Folder *******************
23:47:10: Volume in drive C has no label.
23:47:10: Volume Serial Number is
23:47:10: Directory of C:\ConverterOutput
23:47:10: 01/18/2006 11:47 PM <DIR> .
23:47:10: 01/18/2006 11:47 PM <DIR> ..
23:47:10: 01/18/2006 11:47 PM 2,081,345,536 VTS_01.mpg
23:47:10: 4 File(s) 2,322,915,796 bytes
23:47:10: 2 Dir(s) 4,689,985,536 bytes free
23:47:10: C:\ConverterOutput>

[ChrissyBoy]

Looks to me like you have run out of disk space.

DeviceID: C:
FileSystem: NTFS
Size: 37.2 GB
FreeSpace: 6.30 GB

VOB2MPG produced VTS_01.mpg @ 4478044kB (~4.47GB) then needs to fix it. This produces a new file VTS_01-fixedPTS.mpg (~4.47GB). Then it renames the VTS_01-fixedPTS.mpg to VTS_01.mpg .


But you only have 6.3GB. So it creates the first 4.47GB file but can only create 2GB of the second one.

For this conversion you would need at least twice the size of the original DVD spare (+ about 2% overhead) on the destination drive.

[guns1inger]

You don't have enough space on any of the drives, and two of them are FAT32, and so are useless in thei situation anyway.