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From: Oliver Langner on 12 Apr 2010 12:24
Dear all,

I need to store a lot of animations in a file and found the following: Having set the MAT-file format to Matlab Version 7.3 or later (using the R2009bSP1 version of matlab), I get about a file size of 4.8 Mb, if I save one of my animation arrays (512x512x60 uint8).

Saving two animations with: save testfile.mat gives me twice the file-size, so about 9.6 Mb. However, appending instead the second animation with: save('testfile.mat', 'anim2', '-append'), gives me a file with size 20.6 Mb, although the content is the same.

Loading this large file and saving all again with one save command gives the small file again.

Can somebody point out to me, what is going on? Unfortunately, I won't have the chance to first keep all animations in memory, so I'm kind of dependent on the appending.

Thanks for helping!
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