Scripting help: application launching

[mac'n'nz]

Hey all. I have an external drive with my entire iTunes media folder on it, linked to iTunes . If the external is ejected or turned off , iTunes cannot locate the files .

This has happened a couple of times by accident . It's easy to reload the media ( exit iTunes and re-open it) but the album artwork seems to stuff up . Eg heaps of missing artwork , swapped artwork etc.

I was wondering if its possible to run a script that will display the message "'please make sure external hard drive Is on before opening iTunes" when iTunes is opened .

It could either delay by 10 seconds or so, or even better ask " is the external on" and if the answer is "yes" then iTunes will open .

Forgive my noobness, only ever done windows batch files so my knowledge is very little .

Thanks in advance guys