What is MSDNAA?
Microsoft presents the MSDN Academic Alliance (MSDNAA) Program.
What is an SDC file?
The SDC file format is a Secure Download Cabinet file. It is an encrypted and compressed file format for Internet delivery of the products.
How to decompress .SDC files?
Keep the "unpacksdc.exe" in the folder which has "*.sdc" files
Usage: unpacksdc.exe filename.sdc C:
Merging and Unpacking multi-part SDC files.
Usage: copy /b filename_1.sdc+filename_2.sdc filename_merge.sdc
Again, unpacksdc.exe filename_merge.sdc C:
SDC unpacking problems.
Use SDC unpacker without skipcrc switch, so the file is validated before unpacking
If you get "CRC error", it means that the file is broken and unpacker would not be able to unpack its contents (but try decompressing the files with "skipcrc").
Try downloading the file again, maybe using other source.
Source
