Digital photo frames display jpgs in the order in which they're written to the card, NOT…?
…name order. Any way round that?
It seems that digital photo frames of all makes display jpgs in the order in which they’re physically written to the inserted flash card, NOT name order. And even if you try to write the jpgs from your PC to the card in name order, some will appear out of order. Even if you write them one by one. Maybe Windows writes some to different sectors of the flash card, depending on file size. These frames use cheap chips originally designed for DVD players that are unable to get around this. Is there any way to physically write jpgs to a card in strict name order? Or is there a make of frame that will display in name order, regardless of the physical order on the inserted card?
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Tagged with: cheap chips • different sectors • digital photo frames • dvd players • flash card • jpgs
Filed under: General Info
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Even though the chips understand DOS file systems, not all features are supported and the majority of them seem to prefer FAT-16 and/or FAT-32, so the display order is unlikely to be based on the location a file is written to. Some flash memory systems also employ wear leveling (http://en.wikipedia.org/wiki/Wear_levelling) which orders writes based on the number of times a particular block has been written to. The side effect of wear leveling could be a random order to the photos.
Odds are that either the digital photo frame is using the time stamps on the image files, or if there’s photo upload software rather than simple drag-n-drop using a file manager, the photo software is creating a kind of "playlist" based on the upload time and/or other parameters. Since you’ve already found out that writing them in alphabetical order doesn’t preserve the order, it’s likely to be the file dates.
To find out, I would erase all the photos from the flash card and then insert just 3 photos that have each a different date and time. Don’t upload the photos in chronological order by file date. Mix it up so that if the photo frame displays the photos by the file date, it’ll be obvious.
If the 3 photos are displayed in order of the file dates, you’ll need to trick the photo frame by changing the date of each photo (there are a lot of tools for changing files dates, but the choice depends on if your computer is running WIndows, Mac OS or Linux).
Another way to find out how the order is determined, is to browse the flash card using a regular flash reader plugged into your computer. Make a note of the order the digital photo frame is displaying the photos and then compare that to the files written to the flash card.
The only workaround I can think of to this is putting the photos into a slideshow on your own on the computer, and then playing the video file with the frame. The advantage to that is you can set your own transitions, etc. The disadvantage is it’s a pain in the butt.
Sorry, not much help. I’m not really very familiar with digital frames.