iPod touch Photos on iPod Touch - Too Much Space?

Hi all,

I am trying to find out why, when I put PNG files on my iPod Touch, my available storage space decreases significantly.

For example, I have about 30 MB of photos in PNG format (about 2000 photos all told) but instead of decreasing my storage by 30 MB, it decreases by 1 GB. What gives here?

Any help would be greatly appreciated, as I don't want to waste space.

Thank you in advance.

Thank you for the reply. I don't think that is the issue...

I understand what you are saying however this is happening after I've already put stuff on it.
I have about 12 GB worth of music and movies on there. Off a 16 GB iTouch, which left me with 14.3 GB available for space (after accounting for operating system stuff), that should leave me with 2.3 GB available. Then, I loaded about 31 MB worth of PNG folders. That should have left me with 2.2 GB free. Instead, I have 683 MB free on the iPod. And I have a file folder with roughly 2 GB called "iPod Cache" in my photos directory.

Funny thing is, if I take off the photos that I put on it, I go back up to the amount of space I had before.

So how is 31 MB worth of photos somehow taking up 2 GB?

That actually sounds like a reasonable explanation.
The sad thing is that these are PNG files with 150 DPI resolution. So their original size before being placed on the iPod is (at most) 40 KB or so. As things sync up, I have seen the iTunes software saying something about "optimizing photos." Perhaps that is what you described.

That being the case, is there any way to turn off the photo optimization, so that my PNG files get synced in their native resolution, at their native file size? Why would it make the files bigger when they are so small?

Again, thank you for the help!

motulist, you are correct, it is not 30 MB it is 90 MB. I was only looking at one folder.

Incidentally, these images are on a Windows machine, not a Mac. And I know how to check filesizes on the computers, so when I say that it is 90 MB, it definitely is 90 MB. That is still not 2 GB.

What I think is happening is that when the iPod optimizes the photos, it is actually adding information to them so they can be displayed as thumbnails. I can see the software inflating the files to a little under 1 MB a piece, for 2000 images, totaling about 2 GB. Which sucks because I really don't want the software to make a smaller image bigger...

Ahh well. Hopefully, I'll be able to have the books.app running this afternoon and this won't be an issue anymore.

Thank you all for the feedback!