iMovie won't recognize Nikon Coolpix on Mac

So, I really, REALLY need some help with this.

"I recently received a HD camera as a gift - a Nikon Coolpix L110. It takes HD video.I have iMovie '09 - I don't have the money to get iMovie '11 right now; college has wiped out my account - but there's a huge problem.I was able to import the video (.mov files - codecs are apple intermediate codec, linear PCM) into iMovie without any problems. Hooray.

There was a huge problem when I began to edit them. I could only hear the audio, but there was a black screen for a video.

I tried exporting the video to see if I would get the same effect and I did.

I tried to convert the .mov vid into an mp4 file with the Miro Video Converter - free in the app store - and I received an error message saying it couldn't convert the file." from discussion apple

Each kind of Nikon camcorder recording different HD format video. I.e. Coolpix L120 record HD MP4 format (AVC, H.264 encode), Coolpix P500 record MOV (iFrame/h.264) format (AVC, H.264 encode), Coolpix L24 record AVI Motion, Coolpix S9100 record MP4 format (AVC H.264 encode).

1. Coolpix L series: Nikon Coolpix L120, Nikon Coolpix L110, Nikon Coolpix L100, Nikon Coolpix L24, Nikon Coolpix L22, Nikon Coolpix L11, Nikon Coolpix L3, Nikon Coolpix L2,

2. Coolpix P series: Nikon Coolpix P500, Nikon Coolpix P300, Nikon Coolpix P100, Nikon Coolpix P9o, Nikon Coolpix P80, Nikon Coolpix P7100, Nikon Coolpix P7000

3. Coolpix S series: Nikon Coolpix S9100, Nikon Coolpix S8200, Nikon Coolpix S8100, Nikon Coolpix S6100, Nikon Coolpix S4100, Nikon Coolpix S3100, Nikon Coolpix S100

And iMovie supported modes are the following and require "Footage must be imported through iPhoto":

Nikon Coolpix AW100,Nikon Coolpix AW100S,Nikon Coolpix L120,Nikon Coolpix P500,Nikon Coolpix S100 Nikon Coolpix S1200pj,Nikon Coolpix S6200,Nikon Coolpix S8200,Nikon Coolpix S9100

Why not import Nikon Coolpix to iMovie directly? Is there a app to convert any Nikon Coolpix footage to iMovie format for direct editing, hd video converter for mac is right the best solution. HD converter for mac is designed to convert Nikon Coolpix MP4, MOV, AVI Motion to iMovie MOV, MP4 Mac MOV for iMovie, also you can convert Coolpix footage to FCP, FCE, iDVD for editing and convert to QuickTime, iTunes for playing.

HD video converter mac can let you edit your video, you can:

Merge multiple videos: Join and convert multiple separated HD videos and regular videos to one single file.

Trim HD video length: Capture video clips from HD video and regular video to only convert your favorite parts.

Crop video: Crop to get rid of redundant parts such as the black sides around your video and any part you want to remove.

Edit video effect: Edit video brightness, contrast and saturation, and set special video effects such as embossment, old film, gray etc.