I am finding editing with Final Cut Express 4 has gotten slow and frustrating. This is a new problem. I have used this software for two years with no problems until now. I'll start out editing a project normally for about an hour. Then the playback function starts to lag. After I render a clip and try to play back what I've done by hitting the space bar, I have to look at the spinning color wheel for 30 seconds before my video will play. I have no other programs open, I have 10 GB of RAM. I upgraded my OS from Leopard to Snow Leopard a few months ago. All my Apple Software is updated. FCX has also been crashing and locking up. Is there a preferred way to save my project for more efficient editing? I also tried starting a new project with only a five minute audio mp3 clip and a 10 sec slug for video. I get the same playback delay with this project. In this case I only saved the project not "save all".
I solved my own problem of delayed playback when reviewing my edits in FCX 4. Turns out that the delays happened when my Time Machine was doing an automatic backup. I noticed in the upper rt task bar the Time Machine clock was spinning at the same time I was having playback delays. I turned off the back up function and the delay problem went away. Now I'll just have Time Machine backing up when I'm not editing in FCX4.