All data disks cut off at 3.99 or 4gb

[Maximize]

Ok I make data disks often so that I can read from one drive while burning it to another.

 

and it seems every data disk I have made for some time is stating that there is only 3.99 or 4gb of data when there is always 4.36 or 7.3 gb of data

 

is there a filing system change I need to make, what do I need to do?

 

I just wish I had an indicator when this started happening I have over 100 gb of lost data

[LIGHTNING UK!]

Show us some logs of what you're doing, you just haven't provided enough info to help you without first asking 20 questions.