Can this drive WDBACW0030HBK-NESN be used with a PC & MAC simultaneously?

Can this drive WDBACW0030HBK-NESN be used with a PC & MAC simultaneously?

If ii is formatted for Windows NTFS then download and install NTFS-3G http://mac-free.com/download/NTFS-3G.html  on the Mac and it should work on both. Another alternative is to format FAT32 the downside is the largest file it wil handle is 4 gig.

Joe

Yep, just change the file system to Fat32 or use NTFS 3g