I would like to apologize in advance if I'm not using the correct terminology. I'm using an iMac 2GHZ Intel core 2 duo with OS 10.4.8 and what I'm trying to achieve is converting a 700MB Avi formatted Movie to a Mp4 file to view within iTunes. I have tried using Quicktime (AVI Divx 5.21 plugin and Flip4MAc plugin); ffmpeg; Mpeg Streamclip; and DivXDoctor II. Sometimes I'm successful, most times I am not. I think my problem is not being familiar with the proper conversion (video) setting(s) for the above mentioned applications. 1. For those apps listed above (or not listed) is there one program which this group would recommend for the avi-mp4 conversion; and 2. would someone be willing to recommend the proper video conversion setting to achieve a good quality conversion. One which can be imported/veiwed in iTunes. Thank You