Certain H.264/MP4 videos play without video on iPhone

I have a number of H.264 videos in MP4 containers that only show a black screen when played on the iPhone, while the audio is played back as expected.
Is there any way to get the video to play without having to re-encode all the videos? Below is some info about one of the files as reported by MediaInfo (http://mediainfo.massanti.com/).
* MediaInfo Mac // Plain text file report
2009-05-27 20:29:00 +0200
Information for File: MacworldEncore_2008_US941_Best_of_Leopard_OS_XHints.mp4
General / Container Stream # 1
Total Video Streams for this File -> 1
Total Audio Streams for this File -> 1
Video Codecs Used -> AVC
Audio Codecs Used -> AAC LC
File Format -> MPEG-4
Play Time -> 1h 14mn
Total File Size -> 75.8 MiB
Total Stream BitRate -> 143 Kbps
Title (Tag) -> US941 - Best of Leopard OS X Hints
Video Stream # 1
Codec (Human Name) -> AVC
Codec (FourCC) -> avc1
Codec Profile -> [email protected]
Frame Width -> 640 pixels
Frame Height -> 480 pixels
Frame Rate -> 15.000 fps
Total Frames -> 66855
Display Aspect Ratio -> 4/3
Scan Type -> Progressive
Colorimetry -> 4:2:0
Codec Description -> AVC
Codec Settings (Summary) -> 2 Ref Frames
QF (like Gordian Knot) -> 0.020
Codec Settings (CABAC) -> No
Video Stream Length -> 1h 14mn 17s 0ms
Video Stream BitRate -> 91.6 Kbps
Video Stream BitRate Mode -> VBR
Bit Depth -> 24 bits
Video Stream Size -> 48.7 MiB (64%)
Date of Original Encoding -> UTC 2008-01-29 17:17:47
Audio Stream # 1
Codec -> AAC
Codec (FourCC) -> 40
Audio Stream Length -> 1h 14mn 2s 602ms
Audio Stream BitRate -> 48.0 Kbps
Audio Stream BitRate Mode -> VBR
Number of Audio Channels -> 1
Audio Channel's Positions -> C
Sampling Rate -> 48.0 KHz
Bit Depth -> 16 bits
Audio Stream Size -> 25.4 MiB (34%)
Date of Original Encoding -> UTC 2008-01-29 17:17:47

Copied from this link.
http://www.apple.com/iphone/specs.html
Video formats supported: H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Baseline Profile up to Level 3.0 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
30 frames per second is supported.
Copied from the video stream info you provided:
Frame Rate -> 15.000 fps
15 fps may be the problem.

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ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
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libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
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minor_version : 0
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creation_time : 2011-12-16 00:15:06
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handler_name : (C) 2007 Google Inc. v08.13.2007.
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creation_time : 2010-02-22 17:27:21
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Last edited by xkrajnan (2012-03-19 13:56:51)

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