At first I looked at twice the video instructions. Since I've never dared to venture I to such "operation", I felt like it but very confident. The enclosed printed manual along with the video tutorial are for absolute beginners like me ideal. Gradually I watched every stage of construction on the iPad and built without any problems so my hard drive and my optical drive out of my MBP 15 "early 2011 from which FP replaced by the SSD and the opt.LW by the FP. Concentrated and went quietly worked all almost any problem, only the installation of the FP in place of the Opto-LW I had to use some pressure to put the screws back in place can. The trial run was immediately ok. The installation of the SuperDrive in the supplied frame succeeded as easily only ... during the test run, the inserted CD was ejected after some stuttering immediately. It turned out that the supplied Anti flap inlay was too thick and thus the pressure on the drive cage was too strong. A self-cut of wrapping material foam insert that only a few tenths of a millimeter was thinner, managed Remedy All in all an absolutely tied together - highly recommended, even for absolute layman like me the way,.. the other conversion kits offered with plastic spatula I think is unnecessary. In the Fingespitzen one has much more feeling and that is to pull and replace the various cable mE urgently needed.