But there are ways to work around this.
- You can force Final Cut to playback footage that needs rendering by using the Option-P [play all] command instead of the regular play command.
- or you can open the QuickViewer and view the project there (the QuickViewer is under the Tools menu.)
Adjusting the RT options in the sequence can also help whether Final Cut will play footage without rendering (see the article: Unlimited RT vs. Safe RT.)
A final note for those using Final Cut to edit DSLR footage. If I'm doing a quick assemble edit, I generally just drag the native files into the Project and live with the fact that Final Cut wants to Render things. But if I'm going to do extensive editing, I either use the Canon plug-in for Final Cut, or MPEG Streamclip to transcode to ProRes LT and then edit with those files.
geniusDV: Unlimited RT vs Safe RT
Squared 5: MPEG Streamclip