jpg -> bmp convert bug?

[rjoyal]

app name: convert
tested versions: 6.2.8 on Linux, 6.2.6 on Windows 2000, 6.3.5-3-Q16 on WinXP (downloaded today...)
bug: windows desktop wallpaper selector doesn't see the converted files as valid

I have lots jpegs that I'm converting to bmps for use as windows wallpapers. I have 4 jpegs that convert ok, I can open them in paint, xnview, anything but the windows desktop wallpaper selector.

the command line I'm using is
convert file.jpg file.bmp

When I open the affected bmp in a hex editor, at offset 14 is a value of 124 decimal instead of 40.
Changing this fixes it.

I posted the original jpg at http://www.rollingviolation.com/pix/mis ... ck_bug.jpg

What's interesting is opening and resaving the jpg also fixes it, so I suspect there's something funky in the jpg that trips up the converter.

I don't have any windows C compilers, but I do have linux (Slackware) so I'm game to try patching the source if someone can help me through it. (some kind of debug mode to show where it's tripping up?)

Ray

[magick]

Try this command:

• convert file.jpg bmp3:file.bmp

[rjoyal]

That worked.
Thanks a bunch!
(and fast response too!)

Any idea why it would only do this on 4 of 900+ jpegs?
What's interesting is they are pics originally taken by my buddy's camera and saved on a Mac... but I'm sure I resized and cropped them on my PC using either convert or xnview.