I've put several .src files into my site and compared them to this .dcr but for some reason this one doesn't work. If anybody could just point out whatever mistake I made I would appreciate it.

<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
WIDTH="600" HEIGHT="450" id="superbike" ALIGN="">
<PARAM NAME=movie VALUE="superbike.dcr"> <PARAM NAME=menu VALUE=false> <PARAM NAME=quality VALUE=high> <PARAM NAME=bgcolor VALUE=#000000> <EMBED src="superbike.dcr" menu=false quality=high bgcolor=#ffffff WIDTH="600" HEIGHT="450" NAME="superbikegp" ALIGN=""
TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"></EMBED>
And thats it.

This is some working code from another website:

<OBJECT classid="clsid:166B1BCA-3F9C-11CF-8075-444553540000"
ID=esc_apps_intro_001 WIDTH=790 HEIGHT=543 VIEWASTEXT>
<param name=src value="esc_apps_intro_001.dcr">
<PARAM NAME=swStretchStyle VALUE=none>
<param name=swRemote value="swSaveEnabled='false' swVolume='false' swRestart='false' swPausePlay='false' swFastForward='false' swContextMenu='false' ">
<PARAM NAME=bgColor VALUE=#303D5D>
<EMBED SRC="esc_apps_intro_001.dcr" bgColor=#303D5D WIDTH=790 HEIGHT=543 swRemote="swSaveEnabled='false' swVolume='false' swRestart='false' swPausePlay='false' swFastForward='false' swContextMenu='false' " swStretchStyle=none
TYPE="application/x-director" PLUGINSPAGE="http://www.macromedia.com/shockwave/download/"></EMBED>

This is the link:
You may need to check you have the correct ports etc open, as in that thread. Also check content expiration etc.

Thanks for the advice and that code. It worked with just a few adjustments and I think I found out why it didn't work in the previous code.

No worries - the embed/src stuff is the worst part of web design if you ask me.