Posted by mark miller on August 15, 2008 at 11:50 AM
A friend has sent me a jpeg on a disc twice now and I hate bother him for another try. The first was on a cd, but was too small. He's now sent me a DVD with the jpeg, and not one of my programs can open it. It is on the disc because in my Roxio copy program that came with my Pacific Digital DVD burner, a 33 meg file is on there, but it just copies as an ISO file, whatever that is. I have DPP, Adobe CS, Canon Utilities, and a few others. Can anybody help me open this file? Thanks in advance.
Mark
Put the disk in the drive and open the drive using Windoze Explorer. Select the file and then right click to bring up the context menu. Select 'Open With...' and then select your image editing program.
If it doesn't work then the file is likely corrupted or is the wrong file type. If that's the case, you may need to ask for another copy. If you have to do that, be sure that he burns the file to the DVD as an image file.
-P
Posted by David Bostedo on August 15, 2008 at 3:30 PM
Very little experience burning DVDs here, so take this with a grain of salt...
One other thing is that certain DVD burners or programs require you to "finalize" the DVD to enable it to be played/read in other players. It's possible to forget this step depending on software being used, which may render the disc unreadable even if you can see the files. I have had that experience.
I've also had discs that I could read files from, that my friends computer couldn't - even though they were created by a third person, so incompatabilities can exist. Hopefully someone who knows the in-and-outs of DVD formats will chime in.
Posted by mark miller on August 15, 2008 at 4:35 PM
Thanks for those thoughts. Still won't work, so I'll let my friend know so he can try again. That 'finalize' step may be the key. I do find that dvd's are a lot more ornery than cd's, btw.
MM
Posted by Steve Foss on August 15, 2008 at 5:06 PM
I use Toast Titanium to do my CD and DVD burning, and the finalization step is fully automated. Once it starts burning, all you have to do when it's done is tell it to check the DVD/CD to verify it was successfully burned, or tell it not to verify.
Mark, an ISO file is an image file of a DVD disk It contains the structure along with the data which can be used to create a DVD. That image file will produce a DVD which is identical to the original. It is not a file which has a graphics or picture image. However, the JPEG file with the photo image may be in the image of the DVD.
When speaking of images, it can get confusing as the above uses two definitions. My bet is that the JPEGs files were being saved as a DVD image, not as files on the DVD.
Posted by David Bostedo on August 15, 2008 at 7:04 PM
David (or T.?) Would that mean that the DVD would be "playable" on a regular movie DVD player? Might want to check it that way, Mark...
Posted by Daniel Moore on August 15, 2008 at 9:31 PM
I've had quite a lot of experience with DVD/CD burning and I think that I may know what your problem may be. When one creates a DVD they can make it to be a DVD that plays in a DVD Player (DVD Movie) which changes all the files to something that the DVD player can recognize. Or they can create a Data DVD which which holds all the file in their original formats. You said that you can only pull the ISO file off of the DVD which tells me that the DVD is in a DVD Movie format, because only DVD movies have an ISO file(s). In order for you to be able to retrieve the jpg as a jpg you need to have your friend format the DVD to be a 'data dvd' and not a 'dvd movie'. Hope this helps you out.
When I recently downloaded the Windows XP Service Pack 3 installation for a DVD, it came as an ISO file. That file contains an "image" of a DVD which could have been obtained via the mail. When the file is used with appropriate software software to write on a DVD, the data in the ISO file will recreate a byte for byte copy of the original DVD. This same type of procedure was used to recreate diskettes and other media. Instead of performing a diskcopy, the software used a data file which had the image of the original media.
I suspect that even an ISO file cannot be played as a video. For that matter, there is no need for an original in the media. Rather, the disk "image" can be created directly to a file instead of first being copied to a media and then having the media copied into the ISO file.
My bet is that when making the DVD, some option was not properly set. It could have teen the above mentioned "Save as" image instead of saving as data. That would be a natural error since one is saving a JPEG image. But, again the confusing part, the JPEG image is just data, not an image of a media.
Posted by mark miller on August 16, 2008 at 10:30 AM
Thanks to everyone here! I think I am grasping it now. That 'saving as a data dvd' instead of a movie dvd may be the solution of the problem too. I hope similar image recognition problems as such don't start to haunt us a decade or so from now, considering the constantly changing technology and the 10's of thousands of digital images we all have taken! Yikes.
MM
"I hope similar image recognition problems as such don't start to haunt us a decade or so from now, considering the constantly changing technology and the 10's of thousands of digital images we all have taken! Yikes. "
Been there and done that with Genuine Fractals and their proprietary compression format. As the old mountain men used to say: Watchyerbackside.
Discussion
10 repliesMark
Put the disk in the drive and open the drive using Windoze Explorer. Select the file and then right click to bring up the context menu. Select 'Open With...' and then select your image editing program.
If it doesn't work then the file is likely corrupted or is the wrong file type. If that's the case, you may need to ask for another copy. If you have to do that, be sure that he burns the file to the DVD as an image file.
-P
One other thing is that certain DVD burners or programs require you to "finalize" the DVD to enable it to be played/read in other players. It's possible to forget this step depending on software being used, which may render the disc unreadable even if you can see the files. I have had that experience.
I've also had discs that I could read files from, that my friends computer couldn't - even though they were created by a third person, so incompatabilities can exist. Hopefully someone who knows the in-and-outs of DVD formats will chime in.
MM
When speaking of images, it can get confusing as the above uses two definitions. My bet is that the JPEGs files were being saved as a DVD image, not as files on the DVD.
When I recently downloaded the Windows XP Service Pack 3 installation for a DVD, it came as an ISO file. That file contains an "image" of a DVD which could have been obtained via the mail. When the file is used with appropriate software software to write on a DVD, the data in the ISO file will recreate a byte for byte copy of the original DVD. This same type of procedure was used to recreate diskettes and other media. Instead of performing a diskcopy, the software used a data file which had the image of the original media.
I suspect that even an ISO file cannot be played as a video. For that matter, there is no need for an original in the media. Rather, the disk "image" can be created directly to a file instead of first being copied to a media and then having the media copied into the ISO file.
My bet is that when making the DVD, some option was not properly set. It could have teen the above mentioned "Save as" image instead of saving as data. That would be a natural error since one is saving a JPEG image. But, again the confusing part, the JPEG image is just data, not an image of a media.
MM
Been there and done that with Genuine Fractals and their proprietary compression format. As the old mountain men used to say: Watchyerbackside.