I am having the same issue as the former reviewer using this drive with an aluminum Powerbook (Mac).... well, not using it is more accurate. I purchased the thing this afternoon because I needed to transfer work to my laptop for tomorrow... it's now 2:40 in the morning and I can't get the info off of the drive, so I will be up the rest of the night burning DVDs instead. Ugh. They really need to provide better documentation and note that it is too low powered for (certain?) laptops.