Everything is Crashing When Working on an iMovie 09 Project

Question

I've had my iMac act weird before while using iMovie, but more recently had a crash of my not-even-two-years-old iMac, crash of my not-even-two-years-old Time Capsule, and just yesterday the external hard drive where I had my recent iMovie project stored crashed and burned. All this happening within a week or two. All these crashes happened while working in iMovie. It starts by iMovie inadvertently shutting down. The content of my iMovie project are videos I shot with my flip camera and then converted in MPEG Streamclip and stills I shot with a digital camera. Some of the audio I stripped from video I shot, but most of it is from professionally burned CDs. I'm just wondering if I all these crashes are related and the problem is still with me. I'm not at all familiar with cyber mischief. Any ideas???

Answer 1

I am at Snow Leopard and have only played a bit in IMOVIE - so can't speak for Mavericks - but -
In general as I work a lot in Photoshop - when you are happy with something save it and continue on - If you have Time Machine Running and you want to try things next that may or may not work - force a time machine backup - that way the version you are happy with will be available for 24 hours (and wish this was a setting one could extend) 
If you turn off your mac - or end a program without consciously saving something you may lose what you worked on.
If IMOVIE did not ask if you want to recover what you were doing your update may be gone - but try posting new question - asking about automatic backups in IMOVIE and how they work.