No, the right-click isn't a Windows thing. It works on Mac, too. Select the drive in Finder, right-click on it and select "Get Info", or click to select it and press Command-I. It's most likely formatted NTFS. If you only plan to use it with Mac OS X, you can reformat it. Here are some options:
FAT32 (File Allocation Table)
- Read/Write FAT32 from both native Windows and native Mac OS X.
[*]Maximum file size: 4GB.
- Maximum volume size: 2TB
NTFS (Windows NT File System)
- Read/Write NTFS from native Windows.
- Read only NTFS from native Mac OS X
[*]To Read/Write/Format NTFS from Mac OS X, here are some alternatives:
- For Mac OS X 10.4 or later (32 or 64-bit), install Paragon (approx $20) (Best Choice for Lion)
- For 32-bit Mac OS X, install NTFS-3G for Mac OS X (free) (does not work in 64-bit mode)
- For 64-bit Snow Leopard, read this: MacFUSE for 64-bit Snow Leopard
- Some have reported problems using Tuxera (approx $36).
- Native NTFS support can be enabled in Snow Leopard and Lion, but is not advisable, due to instability.
- AirPort Extreme (802.11n) and Time Capsule do not support NTFS
- Maximum file size: 16 TB
- Maximum volume size: 256TB
HFS+ (Hierarchical File System, a.k.a. Mac OS Extended)
- Read/Write HFS+ from native Mac OS X
- Required for Time Machine or Carbon Copy Cloner or SuperDuper! backups of Mac internal hard drive.
[*]To Read/Write HFS+ from Windows, Install MacDrive
[*]To Read HFS+ (but not Write) from Windows, Install HFSExplorer
- Maximum file size: 8EiB
- Maximum volume size: 8EiB
exFAT (FAT64)
- Supported in Mac OS X only in 10.6.5 or later.
- Not all Windows versions support exFAT. See disadvantages.
- exFAT (Extended File Allocation Table)
- AirPort Extreme (802.11n) and Time Capsule do not support exFAT
- Maximum file size: 16 EiB
- Maximum volume size: 64 ZiB
