Hi,
I run virtual Win 7 Enterprise in PD 9.0.24251 on Mac OS Yosemite and MacBook Air A1466 with 24GB SSD, 4MB RAM, CPU Intel i5 1,8GHz.
For each created snapshot there is separate hdd file named like "Windows 7-0.hdd.0.{xxxx}.hds" with the last time modified same as snapshot creation time. And...