Is it possible to delete a file from disk without confirmation?

I have downloaded a very large mp3 collection and I need to remove many, many songs.
Deleting without confirmation would be great and when using the recycle bin it isn't really unsafe either.

Nobody knows?

Just select all the songs you want to delete and right click > File operations > Delete File(s)

You will only get one confirmation window, it's not a big deal.

And using the recycle bin is as safe as not using it, data only gets erased when it's overwritten.
But if you're too paranoid, you can empty it after you've deleted the songs. But remember, it's not "gone".
There's some program that can safe delete files, such as Norton Protected Recycle Bin and CCleaner and many more.
Then there's more powerful tools you can use if you want to totally erase every evidence you've made on your HDD. I'll leave that up to you to find those.