imovie won't import mp4 although shows in iphoto
I am trying to import a number of mp4 files into imovie to convert them to a DVD that is readable on a home DVD player for our dance studio. I have loaded 9 files without issue into imovie all with the same extension .mp4 without issue. They were all transferred over from the same CD source at the same time, however two of the files refuse to import in. These two mp4 files are also from the same source as a few files that did correctly transfer over. I can see them in iphoto after importing, however the thumbnail is black. They do play in quicktime when I click on them. While in imovie I have tried importing from both the iphoto direction and directly from the desktop where I also have the file saved. Neither has worked. The computer appears to be importing them but then when it is done saying it is importing there is no file to be found in imovie. I have rebooted the computer three times. Quit and restarted imovie a number of times and even turned off the computer overnight all to no avail.
I am beyond frustrated at this point. I know my computer is a bit of a dinosaur. I have new software to be upgraded and loaded soon but am unable to do that before needing this project completed. I am runig OS X 10.5.8 and IMovie is '08 version.
It is so long winded I didn't even know how to google search my solution. Sorry I'm not hugely computer savy and still new to Mac so my apologies if I worded this incorrectly
Hope I've provided enough information to help me.
Thanks!
Jen
imac, Mac OS X (10.5.7)