no, they are the same. 'D' follows 'C' so logic would dictate that Venom has 2 hard drives or a partitioned drive. Windows assigns drive letters automatically to internal components, so you could have A:/ B:/ (second floppy drive, a hold-over I guess from the days of floppy disk swapping or booting from floppies as you can't assign anything to letter 'B') C:/ D:/ E:/ (Hard disks, you can actually buy systems with 3 drives these days), F:/ for a zip, and G:/ H:/ for CD/DVD drives. A little far fetched given that no one actually needs all of that stuff in a computer, but the BIOS/OS can do it that way if need be. Or, if you had one hard drive and a CD drive, and added a second hard drive, then the drive letter for the CD would switch from D to E.
EDIT: I just realized how confusing that actually is. To restate, it goes "Floppies, Hard Drives [always skips to C for first HD], Removable Media, [aka zip or similar drives], CD/DVD. I'm leaving the original garble there for reference to what a confusing post (by a native English speaker, I might add) looks like

And Sandwich, the character set used by the Germanic (English) and Romantic languages is Roman. Cyrillic languages are like Greek/Russian, aren't they?