That's called MULTI SESSION and is doing exactly as expected. I won't look for you but look around for an IMPORT PRIOR SESSION feature. If not just make single sessions.
Using CDBurnerXP 4.2.4 1430
I'm trying to burn videos (via "create a data disc") onto a dvd-r & I've been hitting the "Leave disc open" option.
After it's done, I put the dvd back in the laptop just to double check that it's all on there & I *do* see the data. BUT-
when I go back to add more files, when I check the disc again, ALL the 1st session's burns are gone. Tried this a few times. Same annoying results.
What *am* I doing wrong??