HOW MUCH CAN YOU BURN EXACTLY ON A CD

[Vince604]

Just EXACTLY how much can you fit on a CD? I used the bitrate calculator for 2 74 min. CD and encoded a movie..it came to 1.4 gigs.. so I split them them in half and each file is about 739mb... So is it possible for the file to fit on a CD? Or does the file size have to be at a max. 700mb and lower???
Thanks

[TA69]

i'll just have to assume you're making a vcd. i think that the way it works, is for an 80 min cd, you have 80 minutes, OR 800 megs of vcd. so with a 74, it would be 740 mb's. your files fit just under that. burn it, i'm sure it will fit.
TA69

[Vince604]

Ok thanks. Well by looking at a CD is says the max amount it holds on a 74min. is 650MB and 80min. 700MB. So how would it fit on to a CD? And yes it's a VCD

[cmacleo]

I know it has been explained elsewhere in these forums but VCD/SVCD format disks can store more data that when written to just as an ISO data CD. I believe it is because there is less error handling data saved on the disk. This means that
1. 74 minute = about 740Mb
2. 80 minute = 800 Mb (see the pattern)
There is slight variation allowing for overburning etc. Also note that 74 minute CDs actually do hold 74 minutes worth of VCD watching.

[kwag]

The post above is correct.

VCD's are written in what's called MODE-2. Not MODE-1 like standard data CD's. Basically MODE-2 has less CRC ( Cyclic Redundancy Check ) than mode, so you get extra space in MODE-2.

So the numbers are correct. A 80 Minute CD-R will hold 800MB and a 74 minute CD-R will hold 740MB. And the new 90 minute CD-R's 900MB, etc.

kwag

[jbrondum]

Vince604,

...and it's worth to mention, that EZCD5 will handle everything as MODE-2 (data cd) and therefor not make full use of the VCD format. If your movie is between ~60-74min., then most likely EZCD5 will give you an error message; because it looks at the filesize, rather than the movie lenght.


Regards,
John Brondum

[Vince604]

Just want to thank you three guys. I now understand how the space on a CD works. Well I'm using Nero and looked at the guide for burning an XVCD. OPPS I MADE A MISTAKE. IT'S AN XVCD THAT I'VE CREATED NOT A VCD. But I don't think it really makes a big different. But thanks again!

[Epi]

I think that the Maximum MPEG file size for burning cds is:

74 min. = 734mb
80 min. = 791mb

And the Maximum CD size (in the Main Page of VCD Easy) should be:

74 min. = 755mb
80 min. = 807mb

[m_lea1]

but surly if you had a really big file you would just do the over burn on to the disk? i know that its a little risky doing this becuase you can damage your writer but i have been doing this overburn with nero 5.0+ and i have never done anything to my writer so its worth a look in to!