I tried to connect a Samsung hard drive. Before Mavericks it was working fine. Now it won't appear in Finder and it can't be mounted in Disk Utility. As with previous issues I reported concerning iOS 7 and Mavericks, I wrote in this forum, but Apple never reacts. People are trying to help each other with workarounds, which is great, but the core issue isn't solved by Apple. It seems after Steve Jobs they're not concerned about quality that much anymore. The fact that I can't use a very common Samsung external hard drive on Mavericks is just way beyond deplorable. And what did I get in return? iBooks?