I am trying to figure out how to get the videos I take with my digital camera (Casio EX-ZS10) to play via iPhoto. When I open them in iPhoto, they automatically play in QuickTime, which has audio but no video. I've already determined they play fine in VLC, but haven't figured out a way to force iPhoto to use VLC (even changing the file to play with VLC by default didn't help). So there are two acceptable solutions, neither of which I know how to do: 1--Change iPhoto to play videos in VLC 2--Add the right component/codec in QuickTime to play the files correctly. The files are .avi files Here is the VideoSpec analysis: ***** Analyzed File Results ***** *** General Parameters *** - Name: CIMG0010.AVI - Container: AVI - Audio Video Interleaved - Size: 85.88 MB - Duration: 28s 233ms - Bitrate: 24.3 Mbps *** Video Track Parameters *** - Format: Motion JPEG - Bitrate: Max.: Undefined / Average: 24.1 Mbps / Min.: Undefined - Frame rate (fps): Max.: Undefined / Average: 30.000 / Min.: Undefined - Encoding profile: Undefined - Image size: 1280*720 - Pixel Aspect Ratio: Undefined - Display Aspect Ratio: 16:9 - Interlacing: Progressive *** First Audio Track Parameters *** - Format: MS IMA ADPCM - Bitrate: 176.4 Kbps - Resolution: 4 bits - Rate: 44.1 KHz - Channel(s): mono - Position: - *** Miscellaneous *** - Subtitle(s): No Subtitle - Album: Undefined - Performer: Undefined - Genre: Undefined - Encoded date: Undefined - Album artist: Undefined In the HD>Library>QuickTime folder are the following: AC3MovieImport.component AppleIntermediateCodec.component AppleMPEG2Codec.component ApplePixletVido.component AppleProResDecoder.component AppleVAH264HW.component CASIO AVI Importer.component DivX Decoder.component DivX Encoder.component EX_M4S2.component Flip4Mac WMV Advanced.component Flip4Mac WMV Export.component Flip4Mac WMV Import.component Perian.component QuartzComposer.component QuickTime3GPP.component QuickTimeComponents.component QuickTimeFireWireDV.component QuickTimeH264.component QuickTimeIIDCDigitizer.component QuickTimeImporters.component QuickTimeMPEG.component QuickTimeMPEG4.component QuickTimeStreaming.component QuickTimeUSBVDCDigitizer.component QuickTimeVR.component These are all also in the HD>System>Library>QuickTime folder and the HD>Users>Me>Library>QuickTime folder. I'm not sure WHICH Library/QuickTime folder they're supposed to be in. I am running Mac OS X 10.5.8 It's been suggested that there's a conflict between codecs, so I removed them all and re-added them one at a time. After adding each one, I opened QuickTime, played the file, got only audio with no video, then closed QT, added the next one, etc.