Best way to re-encode a svcd-mpg file -->svcd-mpg ..(with extra bars)

[TheDigster]

See http://forum.doom9.org/showthread.php?s=&threadid=26977 for my first post (where no reply has been made).

I'm looking for the best/fastest way to re-encode these svcd's that have been sitting on my hdd for quite some time now.
Can someone help me or am I just gonna have to use tpmg with cbr? (so, witch program, witch settings to use, to get an equally looking file with extra bars)..

[ppera2]

It's not easy to answer. Every reencode causes some quality loss.

Using CBR is not good idea. Multipass VBR will give best quality.
You have TMPGEnc with 2 pass or CCE with more pass.

And why reencode with black bars ? What you will get with it ?
Is it because of bad aspect ratio ?
And it's not clear for me: you have material with black bar or you want make it ?

[TheDigster]

Thanks for you're help.. I'm trying to get black bars (every aspectratio is incorrect (I need extra bars to get 1.85 to 2.35 or 4:3 to 1.85)). So CCE is the fastest there is right? I cannot do it without re-encode right?