I'm using a quad core 8 gig ram laptop, and rendering a 2.25 hour file with tons of clips. It will render, but no audio, just a buzzing sound. not sure if it has to do with overloading the laptop. I tried Vlc player still doesn't work.
We need more information if we're going to help you.
Please answer the questions outlined here:
Also, rather than starting many threads, you should just stick with one. It'll be easier for everyone to follow the conversation that way.
Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
What is a CODEC... a Primer http://forums.adobe.com/thread/546811
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing
For Mac http://mediainfo.massanti.com/
Once you know exactly what it is you are editing, report back with that information... and your project setting, and if there is a red line above the video in the timeline, which indicates a mismatch between video and project
The easy way to insure that your video and your project match
See 2nd post for picture of NEW ITEM process http://forums.adobe.com/thread/872666