#1 Burning Software

Our application is very simple and is intended to do exactly one thing: append one file to a DVD+RW.
To do this we:
StarBurn_CdvdBurnerGrabber_GetTrackInformation the invisible track
StarBurn_ISO9660JolietFileTree_Create
StarBurn_ISO9660JolietFileTree_ImportTrack track 1
StarBurn_ISO9660JolietFileTree_GetRoot
StarBurn_ISO9660JolietFileTree_Add the file
StarBurn_ISO9660JolietFileTree_GetLevel
StarBurn_ISO9660JolietFileTree_BuildImage passing the level and the next writable address from the track info
and StarBurn_CdvdBurnerGrabber_TrackAtOnceFromTree

This seems to work fine with empty disks and appends nicely to existing disks.

My question is: how would I modify this to overwrite an existing disk with my single file, rather than append to it. I had assumed I would skip the ImportTrack and simply give a next writable of zero, but this does not seem to work. I realise that I could erase the disk, but hoped I could just overwrite.

Thanks

Rlheap,

What I do, is to erase the disk using StarBurn_CdvdBurnerGrabber_Blank().

If you erase the Disk with the Fast option, it happens pretty quickly.

I have a question for you though. When you use the method that you described above, are the previous files still readable when you use Windows explorer to view the disk?

I am looking to doing the same thing that you just described.

Thanks

Michael Kupka

absolutely - that's the whole point of importing the track. You do, of course, need to eject and reload the disk before Windows will read it.

rlheap,

I have 2 questions,

1. Are you closing the session after each append?

2. Are you always writing to track 1 and importing track 1?

I have tried the TrackAtOnceFromTreeWithImport sample, and it always seems to overwrite the existing filetree with the latest one to be recorded.

Any ideas?

Thanks

Michael Kupka

1. no
2. yes

StarBurn_ISO9660JolietFileTree_ImportTrack (track1) gives me an access violation. I only call it if the disc is not blank. I'm not quite sure why it does this.

Any ideas?

Hi!

First of all, do you guys have the latest version of Starburn SDK?

DVD-RAM and DVD+RW can be *always* appended or overwritten. And DVD+R and DVD+R and DVD-R and DVD-RW can be recorded in single session mode when next session would not be allowed.

If you have problems with overwriting of DVD+RW or DVD-RAM then please send the logs to our support.

Regards,
Alexander Orlovsky

Yes, we are using the latest SDK ( 5.12.2 ). I have mailed the debug logs to Oleksiy.

Thanks

It depends upder what you mean under "overwrite". If you want to append the media w/o physically overwritting old data - just skip ImporTrack(...) phase. New data would start from new NWA (next writable address) and old data would be still on the DVD (but not visible to Explorer or whatever). If you want really OVERWRITE - just pass LBA 0 for recording (and don't import track of course). In such a case OLD data would be physically destroed by recording new one over old one.

P.S. DVD-RAM, DVD+RW and multisession DVD-RW can be overwrited w/o need to erase. Single session recorded DVD-RWs cannot. Small remark