Record Label Product Setup HELP!!

OK...

I am trying to setup Zen Cart for my record label online shop. I am having difficulty in the following:

I have a product that is a song which will be available in different formats, i.e. 12", mp3 and wav, these formats will all have there own price and obviously different delivery methods, to lay it out clearly:

1 product;

12" - £4.50 - posted item
mp3 - £0.69 - downloadable item
wav - £0.69 - downloadable item

I am at a complete loss as to how to set this up.

Can anyone help a very frustrated person?

Thanks

Set up your Option Name as something like:
Media Format
Dropdown or Radio Button

Setup your Option Values for that Option Name as:
12"
Sort Order 10

MP3
Sort Order 20

WAV
Sort Order 30

Then, consider adding something to force the customer to make a proper choice such as:
Select from below ...
Sort Order 0
Display Only YES
Default YES

Now, the customer must pick the right format to add to cart ...

Next, add you attributes to the Product ...

You can either add the weight to the 12" attribute or add the weight to the Product and add the negative weight to the MP3 and WAV attribute ...