MarkEldridge
10-30-2007, 05:59 PM
Hi,
I have been searching forums and sites and have finally decided to post to a forum to see if I can get an explanation....
I have an iPod Touch and am running Windows Vista and the latest iTunes software.
I recently attempted to synch a bunch of photos (between 7 and 8 megapixels each, but some shrunk down to reasonable sizes) and have noticed that out of over a hundred images, I may get 8 that show up on the iPod. Of those 8, roughly 7 of them are corrupted (and I mean REALLY screwed up).
I have attempted:
1) Deleting the cached "optimized" (insert laughing here) photos and trying to resynch again, only to find that the exact same set of images show up, and the same type of corruption that was there previously has been put back.
2) Manually shrinking some photos using PSP7.0 and then resynching. Still corruption.
My only conclusion is that there are possibly variants of the JPG spec out there, and that Apple can't seem to get it right in their compression algorithm... which seems funny as I have written some basic JPG compression algorithms myself years ago in school, and they aren't all that hard to get your head around.
Has anyone else had this same problem? Is there a way around it? Do I have to convert all my photos to a different format? If so, which one makes-happy with the Apple compression algorithm?
I read one post where somebody said you have to synch your photos from a USB key, due to some kind of permissions issue with the iTunes software and Vista. Tried that, same results as previous (and I am deleting the cache each time).
I have been searching forums and sites and have finally decided to post to a forum to see if I can get an explanation....
I have an iPod Touch and am running Windows Vista and the latest iTunes software.
I recently attempted to synch a bunch of photos (between 7 and 8 megapixels each, but some shrunk down to reasonable sizes) and have noticed that out of over a hundred images, I may get 8 that show up on the iPod. Of those 8, roughly 7 of them are corrupted (and I mean REALLY screwed up).
I have attempted:
1) Deleting the cached "optimized" (insert laughing here) photos and trying to resynch again, only to find that the exact same set of images show up, and the same type of corruption that was there previously has been put back.
2) Manually shrinking some photos using PSP7.0 and then resynching. Still corruption.
My only conclusion is that there are possibly variants of the JPG spec out there, and that Apple can't seem to get it right in their compression algorithm... which seems funny as I have written some basic JPG compression algorithms myself years ago in school, and they aren't all that hard to get your head around.
Has anyone else had this same problem? Is there a way around it? Do I have to convert all my photos to a different format? If so, which one makes-happy with the Apple compression algorithm?
I read one post where somebody said you have to synch your photos from a USB key, due to some kind of permissions issue with the iTunes software and Vista. Tried that, same results as previous (and I am deleting the cache each time).