#1 Burning Software

It is currently Fri Mar 29, 2024 2:37 am

All times are UTC




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: DVD+RW Disk Info
PostPosted: Sun Jan 02, 2005 11:35 pm 
Offline

Joined: Sun Jan 02, 2005 11:32 pm
Posts: 6
My question is in regards to the _GetDiscInformation function.

For an empty CD-RW, the m__UCHAR__DiskStatus member correctly reports DISC_STATUS_EMPTY. For an empty DVD+RW it reports DISC_STATUS_INCOMPLETE.

How can I determine generically if any RW disc is empty?

Cheers,

Stuart


Top
 Profile  
 
 Post subject: Re: DVD+RW Disk Info
PostPosted: Thu Jan 06, 2005 11:44 am 
Offline

Joined: Mon May 31, 2004 6:22 am
Posts: 134
scarnie wrote:
My question is in regards to the _GetDiscInformation function.

For an empty CD-RW, the m__UCHAR__DiskStatus member correctly reports DISC_STATUS_EMPTY. For an empty DVD+RW it reports DISC_STATUS_INCOMPLETE.

How can I determine generically if any RW disc is empty?


Hi,

Please, query TRACK_INFORMATION for TRACK_NUMBER_INVISIBLE:
Code:
        l__EXCEPTION_NUMBER :=
            StarBurn_CdvdBurnerGrabber_GetTrackInformation(
                l__PVOID__CdvdBurnerGrabber,
                PCHAR( @l__CHAR__ExceptionText[1] ),
                sizeof( l__CHAR__ExceptionText ),
                l__ULONG__Status,
                @l__CDB_FAILURE_INFORMATION,
                TRACK_NUMBER_INVISIBLE,
                @l__TRACK_INFORMATION
                );


And then check l__TRACK_INFORMATION.m__LONG__NextWritableAddress. For all empty discs it should be 0.


Top
 Profile  
 
 Post subject: Re: DVD+RW Disk Info
PostPosted: Thu Jan 06, 2005 2:44 pm 
Generally speaking DVD+RW and DVD-RAM discs are always reported as "incomplete" (by multiple requests of our customers) as they ARE always writable. You do not need to erease existing content before burning something to them.

scarnie wrote:
My question is in regards to the _GetDiscInformation function.

For an empty CD-RW, the m__UCHAR__DiskStatus member correctly reports DISC_STATUS_EMPTY. For an empty DVD+RW it reports DISC_STATUS_INCOMPLETE.

How can I determine generically if any RW disc is empty?

Cheers,

Stuart


Top
  
 
 Post subject: Thanks
PostPosted: Thu Jan 06, 2005 3:33 pm 
Offline

Joined: Sun Jan 02, 2005 11:32 pm
Posts: 6
Thanks, that's what I ended up assuming - just curious why the difference between CD-RW and DVD+RW media, since they are both re-writable..

Cheers,

Stuart


Top
 Profile  
 
 Post subject: Re: Thanks
PostPosted: Thu Jan 06, 2005 9:43 pm 
Offline
Site Admin

Joined: Fri Jun 18, 2004 12:03 am
Posts: 4089
Location: British Virgin Islands
Yes, both rewritable, but in totally different way :-) DVD+RW is also supposed to have defect management (like DVD-RAM). However not implemented by any single hardware vendor yet.

scarnie wrote:
Thanks, that's what I ended up assuming - just curious why the difference between CD-RW and DVD+RW media, since they are both re-writable..

Cheers,

Stuart


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 13 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group