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divx file format, can you edit them?

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Old 22 May 2002, 08:06 AM
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ptholt
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Have downloaded several chunky files in divx file format and would like to put them to cd.
Unfortunately through nero it pushes it over 800mb, does anyone know an app i could use to split these divx files and put them on two discs?

I have apps that work for avi and mpg's but the divx ones either refuse to open in these apps, or they split them and loose all audio.

Any ideas?
(other than geting a dvd burner which im contemplating).
Old 22 May 2002, 08:13 AM
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DJ Dunk
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Best thing to do is convert to Mpg or Avi and split them

Divx files have an information header at the end of the file, so it would be difficult to to split them in the conventional way.
Old 22 May 2002, 08:18 AM
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ptholt
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ahhh I did start to try that, but the converter software (cant remember its name) was taking HOURS !

Any recommendations as to which piece of software can convert them?
Old 22 May 2002, 08:22 AM
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MarkO
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Cool

The converter will take hours, since there's a lot of data to convert...
Old 22 May 2002, 08:49 AM
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ptholt
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Thats not what i wanted to hear as theres rather a few files

anyone got a cray i can borrow to convert them?
Old 22 May 2002, 08:57 AM
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DJ Dunk
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LOL Yeah, it does take a while. They have to convert on a frame-by-frame basis

I use TMPmpg (?) and VirtualDub for my requirements Probably same as everyone else.
Old 22 May 2002, 09:21 AM
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Avi
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http://www.vcdhelp.com/divxtovcd.htm

Instructions Here

Trending Topics

Old 22 May 2002, 10:15 AM
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Dr Hu
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VirtualDub will split files easily.....you have to remember to set the recoding options to DIRECT STREAM COPY for AUDIO and VIDEO though...or it WILL take hours as it re-renders each frame.

It usually takes about 5-10 mins TOPS to split a 1 Gig DivX into two files....and thats with looking for a keyframe to split off in a quiet section of the film - you dont want to swap CD's in the middle of a big action scene!
Old 22 May 2002, 10:20 AM
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ptholt
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Dr hu, so is virtualdub splitting the divx file, or splitting and converting to avi at same time?
Old 22 May 2002, 12:32 PM
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Dr Hu
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The way I described is just splitting the big file into 2 smaller ones to fit on CD's.

I would'nt convert DivX to AVI anyhow the quality loss would be too great - a DivX file is just a mpeg4 compressed AVI anyhow - they even have a .avi extension.

As long as you have the appropriate DivX decompressors loaded from DivX you can play them through Windows media player or PowerDVD anyhow.

I have ahem 'backed up' a few precious DVD's into DivX using Flask MPEG to convert from DVD into DivX, then virtual dub to split the file into CD size chunks.

Flask Mpeg does all the work - a 2Hr rip from DVD to DivX on a PIII 500 took about 8Hrs. After a upgrade to an AMD XP1700 it takes about 4hrs.

Hope this helps.
Old 22 May 2002, 12:35 PM
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ptholt
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hmm gonna have a play with this tonight, cheers for all the help guys, will let you know how i get on.
Old 22 May 2002, 12:42 PM
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Aaah, I see. You just want to burn the Divx file to CD, not burn to SVCD or VCD ? In that case won't take long at all
Old 22 May 2002, 12:44 PM
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ptholt
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well i was assuming (perhaps incorrectly) that divx being an avi, i could just put it to cd through nero (vcd and svcd) and play it on my dvd player..........

I take it i now have to refer to long conversion process
Old 22 May 2002, 12:56 PM
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Wink

Fraid not, unless your DVD player plays Divx files You'll need to convert to a compatible Mpg version, depending on whether you will use VCD or SVCD (or XVCD for that matter)

[Edited cos there seemed to be far too much winking going on ]

[Edited by DJ Dunk - 5/22/2002 12:58:46 PM]
Old 22 May 2002, 11:34 PM
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ChristianR
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divx 2 vcd - looses a lot of quality, and looks naff.

[Edited by ChristianR - 5/22/2002 11:35:08 PM]
Old 22 May 2002, 11:39 PM
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ptholt
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surely that depends on how well there encoded in the first place tho?

if you have some tiny file (50meg) with poor audio and small screen its always going to convert worse than an 800 meg divx full screen version surely?
Old 23 May 2002, 09:45 AM
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Wink

Of course it does

If you encode to a Divx file at full DVD res, its always going to be clearer then one done at VCD res.

The point is, that there are very few ()standalone Divx players about at the moment, so the best alternatives are VCD, SVCD, XCD, Mini-DVD or straight DVD-R. I have burnt XVCDs at full dvd quality onto a CDR with no problems. Only thing is, you can only get about 15 mins onto a CDr.

You have to make sacrificies in quality for portability.
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