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AndrewTheGreat
Known Participant
September 11, 2025
Question

Pr 25.5 - the "rewritten" MKV support is off

  • September 11, 2025
  • 1 reply
  • 298 views

I updated to 25.5 of Premiere Pro yesterday. The blog here says the MKV support was rewritten:

But this is what I see when importing an MKV:

The file info:

C:\Users\AndyF\Downloads\Video\What's New in Premiere Pro _ 2025 Updates _ Adobe Video.mkv
General
Unique ID                      : 65392825175610104412735799271089255734 (0x31323334353637383930313233343536)
Complete name                  : C:\Users\AndyF\Downloads\Video\What's New in Premiere Pro _ 2025 Updates _ Adobe Video.mkv
Format                         : Matroska
Format version                 : Version 4
File size                      : 70.7 MiB
Duration                       : 2 min 5 s
Overall bit rate               : 4 743 kb/s
Frame rate                     : 30.033 FPS
Writing application            : IDMmkvlib0.1
Writing library                : IDMmkvlib0.1
Language                       : und

Video
ID                             : 1
Format                         : HEVC
Format profile                 : 0
Codec ID                       : HEVC_01
Duration                       : 2 min 5 s
Width                          : 3 840 pixels
Height                         : 2 160 pixels
Display aspect ratio           : 16:9
Frame rate mode                : Constant
Frame rate                     : 30.033 FPS
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Default                        : Yes
Forced                         : No
Color range                    : Limited
Color primaries                : BT.709
Transfer characteristics       : BT.709
Matrix coefficients            : BT.709

Audio
ID                             : 2
Format                         : Opus
Codec ID                       : A_OPUS
Duration                       : 2 min 5 s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 48.0 kHz
Bit depth                      : 32 bits
Compression mode               : Lossy
Default                        : Yes
Forced                         : No

 

So what was rewritten?

1 reply

jamieclarke
Community Manager
Community Manager
September 11, 2025

Hi @AndrewTheGreat -   Thanks for reaching out. While MKV is now supported in Premiere Pro, it’s important to note that MKV is a container format it can hold many different audio and video codecs.  Not all of those codecs are supported for import. In your case, the Opus audio track isn’t currently supported in Premiere.

As a workaround, you can transcode just the audio track into a more common codec (such as AAC or PCM) while keeping the video unchanged. Tools like Shutter Encoder, FFmpeg, or HandBrake can do this without requiring a full re-encode of the video.