In the past I used a program called JAlbum to create static web galleries, which is fine for my use. The jalbum website is down, not sure if it's an isolated failure or if it's gone.

Later versions of JAlbum put comments into jpeg image metadata - doesn't seem to do it for mp4 files. When JAlbum was new image description went into a file called comments.properties. I'd like to copy these comments from the text file to the jpeg "ImageDescription" field. Does anyone have any suggestions how to do this? File format is something like.

filename1.jpg=Here's a family photo!

filename2.jpeg=Little Billy catches a fish

I could write a bit of Java to do it, but that'd take hours as I'd need to find a jpeg library. Any other suggestions how to do this more quickly / easily?