File created with Cubase 1.x error message even with low track count project

Happened yesterday, when saving a project file. It’s a low track count (100 or less) and small file size (34 MB).

When I try to open I have repeatedly got the “this file was created with Cubase 1.x” error message.

This appears to have happened to several others though with much larger files, I am nowhere that limit.

Windows 10/Cubase 10

Please can someone help, I’d like to open my file and I may not be the only one.


This message appears, if the file becomes corrupted, sorry.

Yikes, OK thanks.