Question about MB/s on CD?

[puertorican138]

Can you fit more than 700MB/s on an 80m./700MB CD-Recordable CD burned in Mode 2?

[BerrantRyke]

If you are talking about movies. 80 min on a 80min/750MB CD, even if the MB of the movies is over 750MB...

Some writers will let you overburn to about 82 minutes, but this can damage your burner if its does not support overburning.

I hope this helps ya.

[puertorican138]

Thanks BerrantRyke. Do you know if they sell 800MB CD-R/W disks?

[BerrantRyke]

I heard there are 90 min and 99 minute CD's, but your burner must support them....

So with those you could put 900 and 990 MB respectivley.

On a 80 Minute CD, you could fit 800MBs.

Cheers!

[Digifreak2]

I fit about 810 mB max of SVCD on 80 min (700mB) discs imaging with VCDImager and burning with CDRAO.

[Boooooommm]

You shouldn't worry about the movie's size, but worry about the length. VCD's and SVCD's are not burnt according the size in MB's, they are burned according to length of the file. In other words, not the legth, but it will burn by minutes on the disc and not by MB's. If you notice when burning a SVCD to an 80min/700mb with Nero, look in the upper right corner. Notice that the size in mb is closer to 800mb! But if you look at the minutes, it barely gets to 80 minutes. So, when burning an SVCD, be more concerned about the length than the actual size (anyway, if you're trying to burn one of those SVCD's released online, you're sure to fit it on an 80 minute disc), but make sure the movie's size doesn't pass 800mb, or it won't fit on an 80 minute disc.

[Digifreak2]

It burns VCDs and SVCDs in mB's, not by minutes. It just doesn't need as much overhead on the disk as other formats allowing you to fit more data on the disc (ie. 805-810 mB max). The minutes the last post refers to is the equivalent audio cd minutes which is has become the standard for measuring cd-r disc capacity.

[vitualis]

It burns ultimately but SIZE.

For VCD, however, it is convenient to think of it by time as it is just about right.

Many 80min CDs actually are a few seconds less (i.e., about 79:57) without overburning.

For a one track VCD with absolutely MINIMUM overhead, you still loose about 10 seconds in overhead (6 seconds minimum in track 1, 2 seconds of lead-in for video track and 2 seconds of lead-out). The lead-in and lead-out could probably be tweaked if you are counting seconds.

That is, for NO overburning, an 80min disc should be able to reasonable safely burn a one video track VCD of about 79min 46sec in length and definitely 79min 40sec.

Assuming your MPEG-1 file is correctly muxed and padded and is in spec, it should be around 795.5 MB.

Most burners and media will allow you to overburn at least 1 minute safely so this usually isn't so much of an issue though...

Regards.

[NeWcS]

I can get 822mb on one 80min cd(VCD)

[vitualis]

Not without overburning though.

Regards.

[NeWcS]

I dont know if its over burned. If I take a 820mb MPG and load it into VCDImager and make a bin/cue then burn it it works. CRDWin doesnt show it as being over 80min although sometimes it is.

If there is some way for me to prove it to you let me know.

[vitualis]

It is simple.

Extract a CUE/BIN image of the VCD (or any CD). Use CDRWin to read the number of sectors of the image.

If it is greater than 360,000 sectors, it is > 80 min and thus it was overburnt.

If it is less than 360,000 sectors, it was < 80 min and not overburnt.

If you load a file that is 820 MB and the resulting image is < 80min, there are a number of possibilities:
1. It actually was less than 820 MB and it was simple a filesize reporting error by Windows
2. The file wasn't muxed correctly and putting it through VCDImager somehow cut out some of the empty chaff (unlikely)
3. The file somehow got cropped along the way (you should notice that).

Regards.

[sean madison]

here are some specs to go buy-

Memorex multicolor discs 80 min-
max overburn i have done successfully- 825 mb

Fujifilm 80 min- 826 mb
TDK 80 min- 826 mb
Circuit city 80 min- 826 mb

Generic grade a silvers 80 min- 830 mb (24x too)

These are facts that i have done myself.

I use LiteOn 32x12x40x burner.

Think of each minute very close to 10 mb.

Also- audio cds hold just about up to 800mb really!

795 mb is the breakpoint before overburning as what virtualis said.

Data is the ONLY format vs vcd\svcd\audio that cannot be burned up to 800mb.
As it goes by the normal capacity- 703 mb are what most to all 80 min cds hold.