I have a bunch of AVI files containing captured DV footage (Microsoft DV, as that is what is captured through Adobe Premiere on Windows). These now need to be converted to Quicktime DV to work with some other software package. When I Export as Quicktime and select DV25 as codec (in Adobe Media Encoder) the filesize remains almost the same (not surprising because it is the same bitrate as the source), but what exactly happens during the export?

Is the raw DV footage simply extracted from the AVI container and put into a MOV container (meaning only copying of data with no loss in quality)? Or is the video transcoded from Microsoft DV to Quicktime DV (meaning there will be a slight loss in quality)?

If the latter, how can I losslessy extract the DV footage from an AVI container and put into a MOV container?

1 Answer 1


I doubt Adobe Media Encoder is rewrapping the video stream.

To copy the data losslessly from a Type 1 to Type 2 DV-AVI or to MOV, use ffmpeg, a free command-line tool, like so

ffmpeg -i input.avi -c copy -map 0 -video_track_timescale 25 output.mov
  • You can tell if it's re-wrapping by how long it takes. If it's re-wrapping it should be lightning fast, taking very little time at all. If it chugs through them it's probably transcoding.
    – stib
    Commented Mar 5, 2016 at 12:19
  • Unfortunately that command gave the error FATAL error, file duration too long for timebase, this file will not be playable with quicktime. Choose a different timebase or a different container format. It did create a file with an identical filesize to the original, though, but no applications were able to open it. Commented Mar 7, 2016 at 21:00
  • Please paste the console readout of the ffmpeg command.
    – Gyan
    Commented Mar 8, 2016 at 6:00
  • Here's everything that was output when I used the command you provided: pastebin.com/CKM7034A Commented Mar 10, 2016 at 11:33
  • Command edited.
    – Gyan
    Commented Mar 10, 2016 at 11:52

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