Need code to generate a constant URL plus a changing video name and location

Title

Need code to generate a constant URL plus a changing video name and location

Post

Good morning from LA,

I am looking for a code to generate URLs consisting of two parts:

A) http://xyz - this part will be constant, for every record

B) A part of the value of what is in our container fields. At the moment, I have a calculation field generating this value. It returns (for example):

size:640,360

movie:0117_00-00-20-20.mov

moviemac:/2A_HDCam/Downconverts/0117_Downconverts/0117_00-00-20-20.mov

Of this, I only need "Downconverts/0117_Downconverts/0117_00-00-20-20.mov". This part will change for every record, but will always be the same part of the value.

I think that a simple code will give me A plus the relevant part of B.

What I am doing, more broadly, is generating the URLs to movies located on our server. I have probably made this far more complicated than need be, and any advice to simplify would also be greatly appreciated.

Thanks all!