I dont have Any experience with the dash you are using, but I know with Evox, it was as simple as adding a line that went like this...
Section "Launch Menu"
{
AutoAdditem "d:\"
}
Then when the disk is inserted Evox will automatically display the choices (In my case it was CDX, Topspin or NCAA Football... )
The trick here is to simply not hit CDX!!

There was the problem of course where Evox has to be reloaded after the disk is inserted to be able to see the menu, so I simply Made the link to load the game go to ANOTHER copy of Evox, and then THAT copy had the actual section in the INI that Auto Adds anything in D:
Works like a charm, Oh and a friend of mine also found that with Avalaunch its a lot easier, becuase you dont have to reload, just go over to the CD icon in the corner after inserting the disk and it will do the same thing.... (I however and stubborn, and I refuse to switch to anything else, because I am a creature of habit

)