libavcodec changes have broken PNG and ISO support
As noticed in: http://forum.videolan.org/viewtopic.php?f=14&t=81609&p=269904&hilit=detected+format#p269904
It seems that current libavcodec version used in VLC 1.1.2 and VLC 1.1.3 Win32 builds misidentify certain files. For example if one tries to open .png or .iso files, libavcodec always says they are MP3 audio. Because of this PNG and ISO files won't work (there are prolly other filetypes that have this same issue).
Sample log from .png playback.
main debug: processing request item eero_lasku.png node Playlist skip 0
main debug: resyncing on eero_lasku.png
main debug: eero_lasku.png is at 1
main debug: starting new item
main debug: creating new input thread
main debug: Creating an input for 'eero_lasku.png'
main debug: thread (input) created at priority 1 (../.././src/input/input.c:214)
main debug: thread started
main debug: using timeshift granularity of 50 MiB
main debug: using timeshift path 'C:\Users\Raiska\AppData\Local\Temp'
main debug: `file:///C:/eero_lasku.png' gives access `file' demux `' path `C:\eero_lasku.png'
main debug: creating demux: access='file' demux='' path='C:\eero_lasku.png'
main debug: looking for access_demux module: 2 candidates
main debug: no access_demux module matching "file" could be loaded
main debug: TIMER module_need() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 ms)
main debug: creating access 'file' path='C:\eero_lasku.png'
main debug: looking for access module: 2 candidates
filesystem debug: opening file `C:\eero_lasku.png'
main debug: using access module "filesystem"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: Using AStream*Stream
main debug: pre buffering
main debug: received first data after 0 ms
main debug: pre-buffering done 1024 bytes in 0s - 1000000 KiB/s
main debug: looking for stream_filter module: 2 candidates
main debug: no stream_filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for stream_filter module: 1 candidate
main debug: using stream_filter module "stream_filter_record"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: creating demux: access='file' demux='' path='C:\eero_lasku.png'
main debug: looking for demux module: 50 candidates
ts warning: TS module discarded (lost sync)
lua debug: Trying Lua scripts in C:\Users\Raiska\AppData\Roaming\vlc\lua\playlist
lua debug: Trying Lua scripts in C:\softa\vlc-1.1.3\lua\playlist
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\anevia_streams.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\anevia_xml.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\appletrailers.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\bbc_co_uk.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\break.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\canalplus.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\cue.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\dailymotion.lua
qt4 debug: IM: Setting an input
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\france2.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\googlevideo.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\jamendo.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\joox.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\katsomo.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\koreus.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\lelombrik.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\megavideo.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\metacafe.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\mpora.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\pinkbike.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\rockbox_fm_presets.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\vimeo.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\youtube.lua
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\playlist\youtube_homepage.lua
avcodec debug: detected format: mp3
avcodec warning: av_find_stream_info failed
main debug: selecting program id=0
avcodec debug: adding es: audio codec = mpga
avcodec debug: AVFormat supported stream
avcodec debug: - format = mp3 (MPEG audio layer 2/3)
avcodec debug: - start time = 0
avcodec debug: - duration = -1
main debug: using demux module "avcodec"
main debug: TIMER module_need() : 25.000 ms - Total 25.000 ms / 1 intvls (Avg 25.000 ms)
main debug: looking for a subtitle file in C:\
main debug: looking for decoder module: 34 candidates
main debug: using decoder module "mpeg_audio"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:301)
main debug: looking for meta reader module: 2 candidates
lua debug: Trying Lua scripts in C:\Users\Raiska\AppData\Roaming\vlc\lua\meta\reader
lua debug: Trying Lua scripts in C:\softa\vlc-1.1.3\lua\meta\reader
lua debug: Trying Lua playlist script C:\softa\vlc-1.1.3\lua\meta\reader\filename.lua
main debug: no meta reader module matching "any" could be loaded
main debug: TIMER module_need() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 ms)
main debug: `file:///C:/eero_lasku.png' successfully opened
mpeg_audio debug: waiting for PTS
mpeg_audio debug: waiting for PTS
mpeg_audio debug: waiting for PTS
mpeg_audio debug: waiting for PTS
mpeg_audio debug: waiting for PTS
main debug: EOF reached
main debug: finished input
main debug: thread times: real 0m0.002000s, kernel 0m0.000000s, user 0m0.000000s
main debug: removing module "mpeg_audio"
main debug: killing decoder fourcc `mpga', 0 PES in FIFO
main debug: removing module "avcodec"
main debug: removing module "stream_filter_record"
main debug: removing module "filesystem"
main debug: Program doesn't contain anymore ES
main debug: thread ended
main debug: dead input
main debug: thread times: real 0m0.032000s, kernel 0m0.000000s, user 0m0.031200s
main debug: changing item without a request (current 1/2)
main debug: nothing to play
qt4 debug: IM: Deleting the input
main debug: TIMER input launching for 'eero_lasku.png' : 32.000 ms - Total 32.000 ms / 1 intvls (Avg 32.000 ms)