That old chestnut - Quicktime

me_again wrote on 5/18/2026, 6:00 AM

Greetings,

For years now, I've been using Quicktime Alternative 1.8.1 mainly because I occasionally use MPEG Streamclip which requires it and MS2025 works with it.

During a bout of certifiable stupidity I uninstalled Qalternative. "Oops" I thought, well the Anglo Saxon version anyway, and reinstalled it.

Mpeg Streamclip works but the MOV clips in MS2025 I'm editing load but the viewer is black and the timeline files are white. I thought "oops" again and loaded in the latest version QA322 with the same result.

After a couple of cups of tea, I uninstalled the Alternative and installed Quicktime v779. MS2025 now plays the MOVs as it should BUT Mpegstreamclip wants the MPEG2 plugin for Quicktime which is nowhere to be found.

Any suggestions?

a slightly miffed AndyW

Comments

johnebaker wrote on 5/18/2026, 8:22 AM

@me_again

Hi Andy

. . . . QT + Any suggestions? . . . .

Easiest route is to convert the MOV files with Handbrake, to standard h.264/AAC encoding. I have batch converted all my 'normal' MOV files.

For the MOV files I create with an Alpha channel, ie PNG or Quicktime Animation encoding format, I had to resort to installing QT again, 😱.

Handbrake, and many other converters I have tried, do not handle the Alpha channel.

John EB