amount of info onto a cd

[eigna]

I have a 795MB mpg and i want to put it on one disk - I've seen in other places that, on a PC, there's a way to put 800MB on an 80 min CD... is there a way to do this on a Mac?

-angie

[galactica]

I have a 795MB mpg and i want to put it on one disk - I've seen in other places that, on a PC, there's a way to put 800MB on an 80 min CD... is there a way to do this on a Mac?

-angie

Yep. MPEG2??
Author as a SVCD. 795 should fit, though I always author mine as 794 but i dont see a problem with 1 meg more.

1. download VCDTOOLSX
2. open the app, click on the button that is Create .bin/.cue file
3. choose your .mpeg file, select a save as location, click SVCD, then start

it will now convert this .mpeg to a .bin (disk image) and a .cue (linker file)

Download Missing Media Burner, or Firestarter and follow the instructions for buring SVCD.

(essentially MMB - go to the video tab, choose .bin/.cue from the pulldown menu and drag your .cue to the window - then birn
Firestarter I believe has a VIDEO tab, and you can browse for your .cue file then burn)

enjoy Oh all these can be found at versiontracker.com or macupdate.com

/galactica

[eigna]

i do appreciate your help, however, i already have the tools required to make it a VCD - i am really just wanting to save the file itself... thanks

-angie

[galactica]

i do appreciate your help, however, i already have the tools required to make it a VCD - i am really just wanting to save the file itself... thanks

-angie

To actualy "save the file" im not so sure what you mean by that.

you author this as a SVCD or VCD or whatever and its archived onto a cd.

you can extract this .mpeg anytime you want.

This is the only way to get this file onto a 700 meg cd-r

otherwise your options are
1. use an 800 meg cdr
2 use a dvd-r

[eigna]

what program would i use to extract it? i didn't know about that??

[galactica]

The same one you used to make it

Here's how to

1. Insert cd into mac
2. Use toast to make a .toast image under the COPY tab
Instead of burning it to a 2nd cd, just go to file and SAVE AS DISK IMAGE
3. rename image to .bin
4. open VCDTOOLSX
5. use the 1st button which is extract .mpeg file from .bin
6. choose .bin (the one you renamed from .toast)
7. click start

it will put the mpeg file into the same folder your .bin is in

[eigna]

thanks for the info!!

-angie

[havema-1]

Author as (S)VCD:

1x audio-CD speed is 75 sectors/s so a 74 minute audio-CD has 74 min * 60 s/min * 75 sectors/s = 333000 sectors (and a 80 minute CD has 360000 sectors).

SVCD data is stored on a CD-ROM XA "Mode 2-Form 2 block" format with 2352 B sector size. 2324 B of a sector is used for the actual MPEG2-data, and the remaining 28 B is used for minor error detection etc.

So a 74 minute CD holds 333000 sectors * 2324 B/sector = 773892000 B / (1024 * 1024) B/MB = ~738.0 MB of MPEG2 data. Likewise, a 80 minute CD holds ~797.9 MB of MPEG2 data.

[galactica]

Author as (S)VCD:

1x audio-CD speed is 75 sectors/s so a 74 minute audio-CD has 74 min * 60 s/min * 75 sectors/s = 333000 sectors (and a 80 minute CD has 360000 sectors).

SVCD data is stored on a CD-ROM XA "Mode 2-Form 2 block" format with 2352 B sector size. 2324 B of a sector is used for the actual MPEG2-data, and the remaining 28 B is used for minor error detection etc.

So a 74 minute CD holds 333000 sectors * 2324 B/sector = 773892000 B / (1024 * 1024) B/MB = ~738.0 MB of MPEG2 data. Likewise, a 80 minute CD holds ~797.9 MB of MPEG2 data.

Interesting, Ive actually done this calculation before and got the same data (well a result saying 797 is the MAX size I can have a .mpeg) for SVCD .bin creation

However, when i make a 797 meg .mpeg its too large!
I did a 1 meg decrease until i got to 794 which worked. So i just picked that.

Either way, it can be done, you can get this to a 700 meg cd-r and you can extract it to get it back later on if you want.

[havema-1]

A SVCD needs some overhead:

1st there is a 1-2% mplex overhead when multiplexing video and audio.

There is also overhead when authoring SVCD. You may calculate the overhead in sectors by (number_of_non_ISO_tracks * 150) + 450. For example: with 5 MPEG2s the overhead is (5 * 150) + 450 = 1200 sectors / (75 sectors/s) = 16 seconds (with 2352 B sector size). (Possible segment items and application data, if any, go into the ISO track and take up an additional total_ISO_data B : 2048 B/sector).

Usually a 74 minute CD is actually about 74 minutes 40 seconds or even more so usually you may ignore this overhead even with SVCDs with multiple MPEG2 tracks.

[tdogg4ya]

If you want to backup the mpeg as a mpeg on cds you would simply use Stuff its Segmenter and segment into peices of 625 a piece. Expander can expand it also if files are in same folder. This is what I do sometimes instead of messing with burning it as a svcd. I hope this helps

[galactica]

I beleive it was stated

"I have a 795MB mpg and i want to put it on one disk"

Yes your stuffit method does work. Buts its really easier to just burn it as a SVCD.

1. you get it archived to a cdr
2. you can view it if you want on your mac with VIDEO LAN CLIENT for playback
3. a SVCD compiant standaline dvd player can play this disk
4. its still able to be extracted using the method above

this is my preferred method for "archiving" mpeg2 files that are over 700 megs