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View Full Version : Reencoding from VCD Mpeg to DVD Mpeg2 w/o losing quality...


Tr0LL
19th September 2002, 08:24
I want to reencode all my Smallville and Friends episodes (standard VCD mpegs) to DVD mpeg2 so that I can burn them onto DVD and watch them on my Playstation 2. I have tried the DVD-VCD thing (converting sound to 48khz and burning the mpeg1 with the newly converted audio on DVD media, but my playstation 2 won't play that.

So, my question is... Since VCD mpeg is CBR 1150kbps... can I just reencode it to CBR 1150kbps DVD mpeg2? Will I lose any quality doing that? I actually have some room left on each dvd to even do CBR 1900kbps. If the first way loses some quality, will reencoding it to CBR 1900kbps help keep the quality? I KNOW u can't make it look better, I just don't want to lose any quality from the conversion. Or should I do it VBR with a higher average bitrate to keep the quality? I rather do CBR since it's a lot faster and I have to encode a LOT of episodes.

Queston 2... Should I use any filters? I plan on using TMPGenc because it'll resize everything for me, convert the audio, everything in one easy step. I actually have CCE SP 2.50. I know it's a LOT faster, but for CBR is it a lot faster also?

Question 3... CCE - If I do it through CCE, will I notice better quality like usual? I mean the bitrate is so low already and I heard TMPG is better with handling mpeg1. Also what filters would I have to use for this? I would need a resize filter. Is that all?

Other info - All the Friends episodes are PAL VCD mpeg1. All the Smallville episodes were TV captures are are in NTSC. Optimally, I just want to convert the VCD mpeg1 to DVD mpeg2 so it looks EXACTLY like the source. I know I can add spatial and temperal filters to help smooth out the blocks and stuff, but I rather have it look EXACTLY like the sources.

ANY info would be much appreciated.

ronnylov
19th September 2002, 08:42
You can't transcode without loosing quality.

A higher average bitrate will get better result than a lower at the same resolution. So it's better to use 1900 kbit/s than 1150, even if you're reencoding.

Tr0LL
19th September 2002, 09:00
hmm, well that sucks... well then, what is the MAX average bitrate I should try to keep the quality then? So even if I encode at VBR 9000kbps (not that I am), I will still lose quality?

What kbps do you guys recommend me reencoding these vcds to?

auenf
19th September 2002, 14:20
you are going to get some loss, mainly cause of the decoding.

my suggestion for you is to encode them as VBR 2mbit (or lower) and go from there, try it at different bitrates for a few and pick what you like.

Enf...

disturbed1
21st September 2002, 00:15
You could also just keep them as mpeg1 video, and re-encode the audio to 48khz.

DVD can use mpeg1 upto 1856kb/s 352x240(288 for PAL), it follows the constraint parameters set rules.

Sorry, I just learned to read :confused:

Have you updated your PS2's dvd? I did mpeg1 on a dvd for a friend, and it worked fine. He bought his PS2 less than 3months ago. I know some of the older PS2's have playback problems.