Q about calculating space to convert mpeg1 to mpeg2

[Choller]

I have a (newbie) question.

I have 8 mpeg1 files totalling 1.63 GB.

I want to have all these files at the best quality possible on 1 (one) DVD-R. I will use tmpeg to convert to mpeg2 and then Ulead DVD Workshop 2.0 to burn it to dvd.

My question is, how can i calculate what the best possible conversion is or will it fit without a problem on DVD-R.
Now that i see that it's not so big i think it will fit. SO i will make another question.

Example. I have one 6 GB mpeg1 files. How can i calculate what the best setting is to convert this file to an mpeg2 file that will fit on the dvd-r (4.3 GB) ?

Thanx in advance

[mdorion]

Hello.

Why convert at all?

You say Mpeg1, do you mean VCD?

So you are saying convert to a higher resolution, right?

This actually decreases video quality, not the other way round. You are asking your encoder to invent the missing pixels based on the existing ones ... this can't be good ... you don't end up with better quality, but simply bigger files (and slightly decreased quality).

If you have VCD files (320x240) this resolution is valid for a DVD (is this what's called quarter D1?). Only your audio is wrong as its encoded at 44,100 while the DVD specs says 48,000.

So either you use a product that will automagically fix this for you (such as ULead Movie Factory 2) or you rencode the audio only at 48,000 using, say, Tmpgenc) and you added the new file to you DVD authoring prog.

Good luck.

Mario

[furball6969]

If you have VCD files (320x240) this resolution is valid for a DVD (is this what's called quarter D1?)

Actually quarter D1 is 352x240, so is VCD.

Choller:

If the files are of VCD spec or XVCD spec with constant bitrate and 1800 Kbit/sec or less then they will import into a DVD authoring program but you will have to demux the audio and make sure it is sampled at 48000 kHz.

If any of your files do indeed need to be converted click on the link in my sig to the bitrate calculator and use it to figure out your video bitrate.