Variable Frame Rate Output?

[ndesant]

Hi. I registered only to ask for help with a strange issue. I have used AnyDVD to rip my copies of The Wire to ISO. I am now attempting to take these ISOs and make them into lossless mkv files. Everything during the process is fine and very quick. However when I check the output mkv with mediainfo it reports the frame rate as variable. Also, when I play the file in potplayer, Ctrl+J shows a frame repeat every 40 seconds which is unacceptable. Comparing to the original vobs, they have a constant frame rate of 29.97 and playback with no frame drops or frame repeats. Any ideas how to force MakeMKV to output the correct framerate? It does seem to recognize the frame rate correctly while working, but alas, the output mkv is always variable.

[mike admin]

This sounds wrong. Please enable "log debug messages" and "show AV sync errors" in preferences, make sure you're using 1.8.0, and try making MKV again. Please post error log here.

[Romansh]

This sounds wrong.

Most likely MediaInfo's fault though. My CFR encodes are sometimes reported as CFR, sometimes variable, depending on how MediaInfo feels on that particular day…

[ndesant]

Debug log started at Sat Mar 02 14:00:13 2013 , written by MakeMKV v1.8.0 win(x64-release)
Using 524544KB for read cache.
001005:0000 MakeMKV v1.8.0 win(x64-release) started
001004:0000 Debug logging enabled, log will be saved as C:\Users\0/MakeMKV_log.txt
003007:0000 Using direct disc access mode
003028:0000 Title #0 was added (15 cell(s), 1:01:58)
003028:0000 Title #1 was added (14 cell(s), 0:57:38)
003028:0000 Title #2 was added (17 cell(s), 0:54:53)
003025:0000 Title #3 has length of 110 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003025:0000 Title #4 has length of 42 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003025:0000 Title #5 has length of 88 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003025:0000 Title #6 has length of 42 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003025:0000 Title #7 has length of 42 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003025:0000 Title #8 has length of 9 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003025:0000 Title #9 has length of 9 seconds which is less than minimum title length of 120 seconds and was therefore skipped
003025:0000 Title #10 has length of 16 seconds which is less than minimum title length of 120 seconds and was therefore skipped
005011:0000 Operation successfully completed
005014:0000 Saving 1 titles into directory E:/mux
005005:0080 1 titles saved
005036:0104 Copy complete. 1 titles saved.
Application exited at Sat Mar 02 14:03:13 2013


Encoded date : UTC 2013-03-02 14:01:03
Writing application : MakeMKV v1.8.0 win(x64-release)
Writing library : libmakemkv v1.8.0 (1.2.0/1.1.0) win(x64-release)

Video
ID : 1
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : No
Format settings, Matrix : Custom
Codec ID : V_MPEG2
Codec ID/Info : MPEG 1 or 2 Video
Bit rate mode : Variable
Bit rate : 4 521 Kbps
Maximum bit rate : 9 800 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate mode : Variable
Original frame rate : 29.970 fps
Standard : Component

[ndesant]

Most likely MediaInfo's fault though. My CFR encodes are sometimes reported as CFR, sometimes variable, depending on how MediaInfo feels on that particular day…

Perhaps, but I doubt it since frame repeats are horrible in potplayer. This has also happened around 40 times, using the older and newest versions of the program.

edit**
However, when I switch to a refresh rate of 59.94 instead of 29.97 frame repeats are much decreased.
This step is unnecessary with the original DVD or the original VOB, as they both do not drop or repeat at the exact refresh rate as frame rate.

Thank you both for any help you can provide.