I have an ISO that is 9 gb I need to split it in half so my idea was to some how copy half the file and then export it as a new file and do the same to the second half somehow but I have no clue of how to do this as I cannot put it as a variable then phrase it. (For the records I am aware I can do this with a program but I like to learn how to do stuff and this would really make my day in some odd way)

When you say you want to split it, do you mean you want to make two smaller ISO files out of it (so that you can burn two CDs) or you just want to create two parts that you will subsequently join together to recreate the original ISO file?

Two parts so that I can transfer it to another computer so basically Split Burn Copy to other computer Join using another batch file (Already written)

It can be split with a third-party utility, such as GNU 'head' and 'tail' (head.exe and tail.exe) or with a VBScript or C++ application. I don't think it can be done in a batch file.

you can use GNU csplit. put the csplit command in a file, save it and run it like a batch file. Unix Win32 tools | Gawk for Windows

I have installed the coreutils package (.exe install) since it is the one that contains csplit command but when I type csplit /? into cmd it says unknown command what do I do? Sorry but Im sorta new to batch

Do you mean cmd's "??? is not recognized as an internal or external command" babble? If so, then you need to type the full path to csplit in cmd. For example, if it's on your desktop, then something like cmd c:\"documents and settings"\administrator\desktop\csplit If you mean csplit spits out the error, then /? isn't a valid command line switch for the program. ______________________ My work in progress. I hate JS. :P