|You can encode I frames only with Adobe Media Encoder. Proceed as follows.1-Select File>Export>Adobe Media Encoder2-Select MPEG-2 as format and "PAL MPEG-2 Generic" as Preset3-Go to the Video tab and select CBR as Bitrate Encoding; set the bitrate to the value you want4-In the GOP setting set the M frames to 1 and the N Frames to 1 (If I recall correctly M is the number of frames between I frames while N is the number of frames between P frames)5-Click OK, select a file name and location and click Save. |} * See also the thread: Anyone know how to do I-Frames Only?