Originally Posted By: Ira L
Yes. Use Apple's Disk Utility to do this. You will lose the data on the drive when you use Disk Utility.

Will you lose all the data on the drive or only that on the partition you're merging (as I've understood or misunderstood as the case may be)?

The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire