Joe just got a new iMac and wants to know what external hard drive would be best use as a back up, USB 3.0 or Thunderbolt? Leo says that Thunderbolt drives are few and very expensive. He doesn't really need that. USB 3 is more than fast enough and very affordable. And they're formatted to be read on Mac and PC.
Luca's Mac goes to sleep and goes into hibernate mode. Is that normal? Leo says it is and he can't turn off hibernate anymore in OS X. Will it hurt anything? Leo says not at all. It's designed that way. The sleeping computer refreshes the RAM and still checks his mail, syncs to his calendar, etc.
According to the chatroom, he can turn it off with a terminal command. Check out this Apple forum post for more info.
Paul has a Bluetooth Speaker adapter, but his Mac tries to pair with it when he doesn't want it to. Leo says the only thing he can do is turn off Bluetooth on the Mac to prevent it from pairing. Leo doesn't know of any way to tell the Mac to not pair with a visible and previously paired Bluetooth device.
Bernie has a bunch of old slides that he transferred to DVD, and then ripped them to his Network Attached Storage, along with image files of discs (ISOs). How can he view them on his network? Leo says that VLC is an amazing video product that will allow him to view it.
What about Apple TV? Leo says no, it can't understand ISOs. But Bernie can use his Mac with Mountain Lion or later to airplay them to Apple TV. He can just open the ISO with a Mac program like Disc Utility and then once it's mounted, he can stream it from the Mac using AirPlay.
David's laptop is dying so he needs to buy a new one. He likes to do Photoshop and wants to be able to calibrate it to his monitor. Leo says that the current run of color profiles from Microsoft and Adobe are pretty accurate, but if he wants to calibrate his monitor, a Spyder calibrator will work.
Jackie is considering making "the switch" to an iMac. Leo says he prefers the Mac, but there's really not that much difference now between Mac and Windows. It's largely a matter of taste. Buy business grade hardware and it'll last. Not all PCs are business grade - a lot of them are low quality consumer grade computers at low cost.
Jane has a three year old MacBook running Snow Leopard, and CDs she gets from her doctors won't run on it. Leo says that Jane should make sure it's a CD, not a DVD. It may be that her drive doesn't support DVDs, just CDs. Leo says that the program needed was called "Rosetta," and that's an old emulator program designed to run older, proprietary software. Leo says Jane doesn't want to install that because OSX has moved beyond it. Leo recommends asking the doctor to install a program that works with modern Macs.
Bill's son has a MacBook Pro that he got in 2009 and he complains that it's not as fast as it used to be. So he wants a new one with a solid state drive. Leo says that most new laptops now come with SSD, especially ultrabooks. Can he upgrade his son's current MacBook Pro with an SSD? Leo says maybe.
Wes has a six year old MacBook pro and he's ready to upgrade. He's concerned that he can't upgrade the newer versions because of how they're manufactured. Leo says that Apple wanted to get more capacity and battery life. To accomplish that, they sealed the laptop around a huge liquid battery that takes up a lot of room. So users can't upgrade them anymore. It may also be that they don't want people to upgrade their computers, they want them to buy new ones.
Leo says that if he prefers Mac and the university wants him to use Windows, he can actually run Windows on his Mac. He can do this either by running Windows virtually, or by using BootCamp in OS X to create a dual boot setup. Leo also recommends checking with the school store to see if they offer a deal on Macs if he buys it there.