800MB Media? Overburning?

[WeenBoy]

I have 2 Divx files that are 713MB and 700MB. Cropping the credits might cut back some of it (the credits are short), but still not enough to let me cut it at a good point in the movie (I'd only have a ~20MB to play with cutting and that 1/2 way point in the movie is non-stop action.) And I don't wanna make 3 CD's. So I was wondering:

The overburning people talk about here is sometimes not that specific or contradicts. Yes, I can set it to do that, but then I read DON'T DO IT, along with SURE IT'S FINE WORKS GREAT. The media I have is 700MB 80 min. Can/should I try and overburn this with 713 MB as the max? (The IT MIGHT DAMAGE YOUR BURNER is kinda scary too...)

Info:
-It's not being burned as VCD, but as data (Divx)
-I don't wanna reduce the bitrate, I tried a little less and it looked bad, so this is the lowest and ideal encoded bitrate I am happy with.

Thanks for helping.

[Heflink]

It's fine, dont worry about it. When you burn SVCDs you do it all the time. Nothing bad ever comes of it. But Divx is kinda pointless anyway.

[benderman]

Overburning by 13 MB might be to much for the cd-r or the burner. There is still a very little risk that it might damage something. But a lot of cd-recorders support 90min/800MB-cd-rs. Maybe you better try that.

[setarip]

"Can/should I try and overburn this with 713 MB as the max? (The IT MIGHT DAMAGE YOUR BURNER is kinda scary too...)"

That's a decision you'll have to make for yourself. Other posters can only tell you of their success or failure with their SPECIFIC CD burners...

[hermanthegerman]

If you don't want to reencode video, how about reencoding the audio at a lower bitrate. Could save you some Megs. If you encoded i.e. with 128kb/s try 96kb/s.

Servus,
hermanthegerman

[WeenBoy]

It is?

Thanks guys, but why is Divx pointless?

[benderman]

Overburning causes teh same problems no matter if you burn DivX or (S)VCD. Normaly you don't overburn (S)VCDs, but they use an other filesystem that allowes to strore 800MB on an 80-min-cd-r (normaly 700MB). On "normal" cds the 100MB extra-space are used for the error-correction.

[Ostaf]

I wouldn't recomend overburning, not because of damage to the drive, but I've had mixed results in being able to get the file back off of the CD later.

[EighteenthVoid]

Ok check this out, since I pay a little too much attention to cd/dvd formatting standards:

A CD-ROM Mode 1 (data cd) track is different from a CD-XA VCD/SVCD data track.
When they say a CD is 700MB/80-minute, they mean 700meg (70min) for data tracks, and 80-min (800meg) for Audio, and XA Data.

A CD uses sectors to store data, each sector can hold 2448 bytes of data.
CD-ROM Mode-1 uses a sector format called 2048, or "cooked" form. this means that 2048 bytes of the sector are for strait data, and the other 400 are used for error correction. This is how they measure a CD'd data capacity.
CD-DA, CD-ROM Mode 2 and CD-XA (VCD/SVCD) use a sector format called 2352, meaning more of the sector is strait data, and less error correction (only 96 bytes). this is how they measure a CD's minute capacity, since audio cds use this format.

So, in actuality, a raw data cd in 2448 form with no error protection can hold 835 megs, no overburning required. But isnt reccomended for lack of error correction, so much as one tiny scratch would heavilly damage such a disc.

Conclusion: Your 713 meg file will fit on a CD in VCD/SVCD form, with room to spare. but not in CD-ROM form.
But actually, depending on what program you use, you can burn a data cd in 2352 form, look for the option to use CD-ROM-XA MODE 2. (2352)

[Mac Sidewinder]

It's fine, dont worry about it. When you burn SVCDs you do it all the time. Nothing bad ever comes of it. But Divx is kinda pointless anyway.

I hear people saying this all the time. For once and for all, when you burn a 800mb svcd you are NOT overburning. This uses no error correction (which takes up space for normal data discs) and that leaves more space on the cd.

Each burner brand is different and you need to find out if you can overburn or not. Just because you put a 800mb svcd on a disc doesn't mean you can overburn.

Mac