two films, both supposedly 25 fps, but audio tracks don't match?

[cinesimon]

Hi I was wondering if somebody could help me.
I have two versions of the same film, one with good video, one with good audio.
MediaInfo tells me they're both 25 fps. Yet, it seems as though the audio tracks' frame rates are different, as when I muxed the video from one to the audio from the other, the audio begins in sync, then steadily gets worse, as one would expect when the frame rates are not the same.
Can anyone help explain this, and help me combine the video and audio tracks with them in sync?
Below are the details from MediaInfo for the two files.

I want to use the video if the below file, which has great video but the audio track has a Russian interpreter dubbed over the original Italian AC3 track, so it's useless.
So I want the video from this:

General
Complete name : C:\Users\Simon\Downloads\Baaria.2009.PL.480p.BRRiP .XViD-PSiG\psig-baaria.2009.pl.480p.brrip.xvid.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 2.10 GiB
Duration : 2h 24mn
Overall bit rate : 2 080 Kbps
Writing application : VirtualDubMod 1.5.10.2 (build 2540/release)
Writing library : VirtualDubMod build 2540/release

Video
ID : 0
Format : MPEG-4 Visual
Format profile : Advanced Simple@L5
Format settings, BVOP : Yes
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (MPEG)
Codec ID : XVID
Codec ID/Hint : XviD
Duration : 2h 24mn
Bit rate : 1 619 Kbps
Width : 720 pixels
Height : 304 pixels
Display aspect ratio : 2.35:1
Frame rate : 25.000 fps
Original frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.296
Stream size : 1.64 GiB (78%)
Writing library : XviD 1.2.1 (UTC 2008-12-04)

Audio
ID : 1
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 2000
Duration : 2h 24mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Video delay : 416ms
Stream size : 463 MiB (22%)
Alignment : Split accross interleaves
Interleave, duration : 40 ms (1.00 video frame)
Interleave, preload duration : 500 ms

... and combine it with the audio from this file(using mkvmerge - if anyone can offer a better solution I'm all ears and grateful):


General
Complete name : C:\Users\Simon\Downloads\Baaria.2009.PL.480p.BRRiP .XViD-PSiG\Baaria(2009).mkv
Format : Matroska
File size : 1.36 GiB
Duration : 2h 34mn
Overall bit rate : 1 268 Kbps
Encoded date : UTC 2010-07-18 01:47:38
Writing application : mkvmerge v4.0.0 ('The Stars were mine') gemaakt op Jun 5 2010 17:44:09
Writing library : libebml v1.0.0 + libmatroska v1.0.0

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Muxing mode : Container profile=Unknown@5.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 34mn
Bit rate : 818 Kbps
Width : 720 pixels
Height : 304 pixels
Display aspect ratio : 2.35:1
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.149
Stream size : 875 MiB (63%)
Writing library : x264 core 80 r1376M 3feaec2
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x1:0 / me=hex / subme=7 / psy=1 / psy_rd=1.0:0.0 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / wpredp=2 / keyint=250 / keyint_min=25 / scenecut=40 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=818 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language : English

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 2h 34mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 494 MiB (35%)

Text
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Language : English

So - if anyone can help, I really would be most grateful.

[poisondeathray]

lengths don't match 2h24 vs 2h34

154 min vs. 144 min isn't the same ratio as 25 / 23.976 so they could be different cuts, different theatrical releases, etc..

[cinesimon]

Oh - I was wondering about that, too - but wasn't sure how to calculate whether it was a frame rate issue.
Darn - they may well simply be different cuts. Though I was sure there was only one.
Thanks for you response, poisiondeathray.

[poisondeathray]

Do you understand what I'm saying? If it was a simple PAL<=>NTSC issue, the difference multiple would be ~1.0427 (Pal framerates are 25, Film framerate is 23.976 ) . The Pal version should be shorter in duration because it runs 25fps .

If it was that simple issue, then you could speed up or slowdown either the audio or video to match. This is very common and easy to fix. Programs even have presets to do this sort of thing

You probably have extra stuff in one , like more credits or extra scene

The only way to know is to line them up in an editor and compare , trim out the extra stuff

Probably be easier to rip the original source.

[cinesimon]

I understand exactly what you're saying.
Thank you.