You can convert your regular hard drive to be compatible with Xbox 360 slim but it will contain you taking apart your hard drive. This is fairly easy, the only this you need to do is take apart the hard drive, slide out the main hard drive system and place it into your Xbox 360 slim.
There are many videos about this on YouTube. It is best to watch tutorials about it before attempting to do it.
The PS2 slim does not have a harddrive
The PS3 slim has 2 models one with 120GB harddrive and the other with a 250GB harddrive
no Ps1 games are compatible with any ps3's and definatly not with the slim sorry
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Probably the 80GB that has 4 usb ports (it is no longer made). The current models are the 120GB and 250GB slim models and are not backward compatible. The 20 GB model had the closest Backward compatibility features but no WiFi and a small harddrive
Your old PS3 software in your harddrive is different and does not match the slim hardware. It might work enough to allow you to load slim software like you would have to do if it were a blank harddrive used for an upgrade. Your problem is not new. From what I understand that you want to get the Data out of a PS3 which I assume is no longer working, try researching at the Playstation Support Canter. I added a link to start with at replacing and upgrading a harddrive
The 320 GB is the largest harddrive and it is much better to find yourself not using all your harddrive 2 years from now than wishing you got the 320GB harddrive
Yes it the harddrive is updated with the new model. The harddrive needs to be set up for the system that it is in. It would not be a fat PS3 harddrive in a PS3 slim and still allow the PS3 slim to work. You could not even put it in a different model Fat PS3 without uploading the new information for that model PS3. They are all just standard laptop harddrives (2.5" internal Serial ATA HDD) like all PS3 use and then loaded with the unique model information that only that model can use. You certainly could not use a early PS2 capable harddrive to give your slim a capability to play PS2 games. see related link
Yes besides the known different models based on Harddrive there are often two or three different models for each harddrive size. The PS3 was released as a Slim model in September 2009 and has had 8 different Slim PS3 models for the 4 different Harddrive sizes. 2 each for the 120 GB and 250 GB Harddrive sizes and then the 160 GB and 320 GB harddrives have also had 2 Models each harddrive size with the latest release in August 2011. See related link
Yes it is.
PS2 games are all compatible with the PS2 different models for each region
No Live is for Xbox 360