#1 Burning Software

Hello,

I use IDiscInfo.TotalBlocks to retrieve total disc size.
When i call it for empty/erased CD-RW disc i get one number of blocks(about 700MB).
But i get another value(about 680 MB) for the same disc with some data.
Could you explain me why this difference exist?
Is this difference constantly for CD-RW?
Is this difference related to TOC size?
I hope there aren't so many questions for one topic

Thanks You,
Alexey

Hello,

Please tell me what version of StarBurn SDK do you use?
It's normal if you get free space, but not right if you get total disc space.
Burning of blank disc include burning of some
technical info, as well as TOC (for CD equal to 15 MB).

Andrey,

I use StarBurnSDK, version 7.2.20 (build 2007-02-20).
I guess Information below will help you.

IDiskInfo data for blank\erased CD-RW:
FreeLBs 359846 blocks (=702 MB)
TotalSizeInLBs 359846 blocks (=702 MB)
UsedSizeInLbs 0 blocks

IDiskInfo data for CD-RW with some data:
FreeLBs 304847 blocks (=595 MB)
TotalSizeInLBs 348444 blocks (=680 MB)
UsedSizeInLbs 43597 blocks (=85MB)

Thanks for your attention!

Alexey,

Yes, you are right, now StarBurn OCX return total capacity as free space plus used space.
But used space - its only data (without TOC).
And after every track for data CD we additionaly use up some space for TOC.

To get total capacity(with inlcuded TOC size) for data CD you can use NextWritableAddress.

Something like that:

Andrey,

Thanks a lot!
It helps me very much.

Do you advice me anything with DVD discs?

"TotalLBs=NWA+FreeLBs" is not right for DVD.
I tested DVD-RW disc and i got data that you can see below:

IDiscInfo.TotalLbs for empty disc is 2298496
IDiscInfo.TotalLbs for disc with data is 2297887
(2297887 - 2298496) = 609 blocks.

It does'nt look like TOC.

Hello Alexey,

Methods to size detecting for DVD differ from DVD type(DVD+R, DVD+RW ...).

Please send letter to me and I send to you updated StarBurn OCX with some size detection correction, and additional burn callbacks.

Hello Andrey,

I've sent you a letter to 'and...@...com'

Thank, received.