divx to mpeg size...burn rate...and does it worth it?

[IsraAlien]

Hi, i'm sorry if i'm repeating any1 but...
I have two divx files of a 715mb each and I want then to fit into two vcd's.
I would like to know the size of the output of such file and what is the best way to make sure both files fit 2 cd's because sometimes my output files are turning to be much bigger then the original files. so whats the best way to reduce the output size keeping a good quality.

and another thing...I burned couple of cd's to vcd and (exept those annying green squares that I read that I should lower the brightness)
sometimes in fast scenes like action scenes the picture brakes sometimes more sometimes less...and I was wondering if its because I burned them on a speed of 12x or it's something els? if it is what speed should I burn on...about 4? 6?.

and last...I can connect my comp to the TV and watch the movies so does the encoding process worth it or should I just watch the avi's throw my computer.

btw basicly i'm using VirtualDub and TMPGEenc to encode to mpeg and I burn with Nero 5.5.10.0.

thanks for any help

[Gazorgan]

a VCD has a fixed bitrate, so you can't really change anything to make them fit to a CD. Generally speaking a 2 CD DivX should be okay converting directly to VCD unless it's a 3 hour movie.

The speed you burn at ONLY matters if you have really cheap media or a crappy burner.

There is a difference between a PC monitor and a TV screen. What looks good on your PC may look squashed/flat on your TV. The pixel aspect ratio is different. Apps like PowerDVD or WinDVD correct for this (as well as interlaced video). Personally I like a standalone DVD player, it's easier to watch a flick and encode a movie at the same time. I can re-encode to VCD so fast, by the time dinner is done the movie is finished and I can burn/watch it in minutes.

[IsraAlien]

I got lots of divx movies I want to clear from my computer and I watched the movies on tv throw the computer and they look fine.
I would prefer to watch it on a DVD player but the picture is braking on VCD for some reason and I don't know why. perhaps I did something wrong with the settings on TMPGEnc and chose wrong frame rate or something?
basicly I feel i'm loosing lots of quality in the encoding.

and for example on the size...a divx movie I encoded to mpeg started as 694mb and in mpeg is 914mb that I can't fit into a 800mb cd...it variates from time to time
sometimes it stays in about the same size sometimes less.[/quote][/code][/list]

[ZippyP.]

The size of the original file has no relation to the size of the finished mpeg. The size of the mpeg is determined by the bitrate (bits/second) and the length of the movie. Standard VCD uses 1374 Kbits/second for audio and video, multiply that by the length of the movie and you'll get the size of the finished product. You can adjust the bitrate and create a "non-compliant" VCD or XVCD. They will still play on many set top players, depending on the settings (not too high or too low a bitrate). See the guide for fitting an entire movie on one VCD for how to adjust the bitrate to fit. If you use the wizard in TMPGEnc then adjusting the bitrate to fit is easy.

As for watching on your PC, if you're happy with that then stick with it. There is always a loss of quality when video is changed from one format to another. VCD's are just more convenient like Gazorgan said.

Depending on the burner, disk brand and set top player, some people have found that burning at lower speeds does make a difference while others burn at high speeds no problem. I burn at 8X (cheap media), you'll probably have to experiment with your setup to see if it helps or not.

Hope that helps a bit! 8)

[ZippyP.]

The size of the original file has no relation to the size of the finished mpeg. The size of the mpeg is determined by the bitrate (bits/second) and the length of the movie. Standard VCD uses 1374 Kbits/second for audio and video, multiply that by the length of the movie and you'll get the size of the finished product. You can adjust the bitrate and create a "non-compliant" VCD or XVCD. They will still play on many set top players, depending on the settings (not too high or too low a bitrate). See the guide for fitting an entire movie on one VCD for how to adjust the bitrate to fit. If you use the wizard in TMPGEnc then adjusting the bitrate to fit is easy. Here's the guide: https://www.videohelp.com/forum/viewtopic.php?t=84759

As for watching on your PC, if you're happy with that then stick with it. There is always a loss of quality when video is changed from one format to another. VCD's are just more convenient like Gazorgan said.

Depending on the burner, disk brand and set top player, some people have found that burning at lower speeds does make a difference while others burn at high speeds no problem. I burn at 8X (cheap media), you'll probably have to experiment with your setup to see if it helps or not.

Hope that helps a bit! 8)