I'm ready to think about getting an NAS. I have just about filled up about 5TB with Tivo'd video (one full expanded Tivo HD 2TB, one upgraded 2TB Premier and a 2TB external hard drive connected to my PC). Between all my videos - and well over 1TB of music (lossless format), I clearly need a better way to store it than multiple external hard drives. So I've looked over the other threads and I think what I need is a NAS storage device. I'd like it to hold our evergrowing amount of video, music, pictures and documents. I'd like to be able to stream the video and music (through the Tivos) and the music through the Tivo and into a home audio-video receiver. I have set up the Tivo to publish the folders of video and music that are stored on my external hard drives. I have my living room Tivo outputing audio to the home a/v receiver. Right now the connection is with a Tivo Wireless N adapter, but I"m planning to run a cat6 cable so that the Tivo is directly wired to the router. Now I think I need an NAS that can house 4-5 drives. A few people have recommended the synology NAS and I think this is the way to go, but I could use some guidance. I am a newbie at this. I believe I need an NAS to be DNLA compatible (but I could not really tell you what that means beyond more digital formats can be accessed more easily- I may be confusing this with a need for a home media server to be DNLA compatible. Is the Tivo DNLA compliant? Is that sufficient? Should my a/v receiver be DNLA compliant too?). Anyway, I want at least 4 bays - and the option to expand would be useful. I've seen folks here rave about this synology DS1511 scalable NAS: http://www.amazon.com/Synology-Disk...?s=electronics&ie=UTF8&qid=1323232357&sr=1-13 A less expensive model is the Synology DS411J: http://www.amazon.com/Synology-Disk...?s=electronics&ie=UTF8&qid=1323232357&sr=1-24 From what I can understand, the 1511 is a higher level model for two reasons. A fifth bay - and it can be expanded on by simply buying and connecting this expansion unit: http://www.amazon.com/Synology-Plug-n-Use-Expansion-Attached-DX510/dp/B003DTLXKG/ref=pd_sim_e_2 No need to set up another NAS - just add this onto it. ------------------------------------------------- . Are there other features to this DS1511 5-bay system that makes it better than the 411? Is it pricier because it has features that are way beyond what I need? I think I saw mention of monitoring from cameras - and remote access - features that I don't think I need. I just want to store my digital media, a few other documents - have back-ups - and be able to access this information from any home-networked device (or maybe that would be handy - but not necessary). Some features I would like: 1)reasonably easy user interface 2) being able to have any home-networked device access the files stored on the NAS 3) be able to use different sized drives. So I can use the 2TB drives I already have (one filled with Tivo video and the other new and blank so far). And then potentially add some 3TB drives. Can NAS's hold differently sized drives? Can I add them on as I go or do I have to set them all up at once? 4) if I start with 2TB drives - and in the future 3-4TB drives become reliable, inexpensive and available, can I swap drives and replace the 2TB drives with larger drives No doubt there is software and other considerations that go into choosing a suitable NAS. Is there anything else I should consider? Or is it so complicated that it's better to just tell me to just take your word for it? And then there's the question of what is RAID? what would I want? Raid0,1,5, unraid. I don't know anything about what these mean and I see here that people have set up their devices differently. Thanks for any help. I'm sorry this isn't very coherent. I'm sure I'll learn as I go and be able to fine-tune my questions more. Thanks. Lynn. PS - if it matters, I currently have a dell inspiron 530 with Windows XP. In the next year or so I'll probably get a new desktop with Windows 7. Does the operating system of my pc matter in terms of setting up the NAS? Any problems with switching the desktop operating system in a year or so?