>imported a video from my camera
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
For PC http://www.headbands.com/gspot/ or http://mediainfo.sourceforge.net/en
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
DV AVI is about 13Gig per hour
Im a starter in this application
I very strongly recommend reading the entire Help file before actually using software of this complexity. Start at the beginning and go through in sequence. Don't skip around. Look up any words you don't understand, don't just keep reading past them. Try each new thing as you learn it on a test project.
Once that's done, you'll have a pretty good grasp of how the program works, and won't get tripped up by basic stiff like this.
To help people help you, better information is needed.
What format video is the source? List your camera model if you don't know.
What is your sequence preset?
What is your export format & preset?
Which Version of Premiere?
Windows or Mac.
Complete computer specs, including OS, CPU, Amount of RAM, & GPU.
Don't make people tease the information out of you.
Get a MJPEG codec from Morgan or MainConcept.
I see that you're looking at the QuickTime website in the background of MediaInfo; do you have QuickTime Player 7 installed? I suspect you do, since you can import the video, and this is a QuickTime file. Don't bother installing an MJPEG codec, either from Morgan, MainConcept, or anyone else--those are only for MJPEG AVIs, and your file is a JPEG QuickTime MOV.
When you import the clip, does it come in as video only (icon looks like a filmstrip only) or as video and audio (icon looks like a speaker with a filmstrip)? When you open the clip in the Source Monitor, right-click on it and go to Display Mode > Audio Waveform; do you see a waveform?