I don't have good luck ripping directly to my server. In the end it requires a copy paste anyways.
I keep all my media very organized. I'm willing to bet I have one of the larger and better organized collections here on AVS. I have been collecting media since before I join this forum.
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Everything on my server is highly organized. Every movie is named/renamed exactly with mediacentermaster. It includes the year and resolution in every name. Every video file is inside a video folder of the same name. Every folder contains all the metadata, album art, backdrops and such.
I have mediacentermaster set to build PLEX/XBMC and mediabrowser info as I have all three installed on my HTPC and desktop. I find the performance of the front end is superior when your libraries are well put together and organized. I also find that as your library grows larger and larger that is where the performance and read speed of your server comes more and more into play. I couldn't run my 20TB collection with 40MB/sec read speeds.
Back on topic- I know what Dark Slayer is saying. But I don't think you have tested this yourself. If so you'd know why I prefer my way. I't might be a limitation of how I do it but I am not willing to change that.
Details:
When you rip directly to a server that is fine. Works fine. The read speed of my optical drives is far under the write speed of my network and server. But I choose not to rip directly into my organized library for many reasons. The biggest reason is I don't want anything in my library collection folders that is not 100% complete. Named perfectly and all organized with accompanying meta data and art. I know this is different from how most noobs do it. My realization that the vast majority people probably just dump raw video files into a folder called movies and let XBMC metascraper sort it out makes me think my explanation is going to fall on deaf ears. I don't do that. I do it all perfectly manually and then and only then do I place a finished video folder into the appropriate libary where it belongs. I have 8+ libraries or root folders for categories. My collection is very tight.
So that means I would need to create a folder on the server perhaps called "rips" and then point my mediacentermaster scraper to that folder. It would run (over LAN) do it's thing and then I could move the finished product over to the end resting place and library. I've done this. But it also requires a copy paste no different than if I did it locally on my desktop storage scratch disk. With flexraid it still requires a copy paste- it does not just repopulate into the other area in most cases. So now I am waiting to copy and paste over LAN (worse) than from local to server. It's not saving me any time. In fact it's taking more time. Mediacentermaster sucks over LAN as compared to a locally folder in performance. So that process (which I am watching live and controlling ) also takes longer.
Your right- I often set a copy paste to go and then walk away. I don't sit there an wait for it like your all thinking I do. But that changes nothing about my appreciation for a 100MB/sec transfer speed verus a 40MB/sec transfer speed. Again my original comment rings true. I am not understanding the resistance I am getting on this matter. What the heck is wrong with appreciating good performance from your server ?
90% of the noobs that dump raw video files into a folder they obtained from torrents and use XBMC to sort it out probably have no clue what I am talking about. (not saying anyone is that chillax )
Here's a snap shot of just a small portion of my collection of rips

It it don't look like that then it does not go into my library. I don't rip directly into my library. That works fine for a single movies folder type set up but not for an advanced organization set up.
I have many, many collections that I organize to have top level folders that go into sub folders.
Example:

goes into:

Ripping into my collection or library would be harder for me because I'd have to change the default library location or storage location for the rip in makeMKV each time. If I wanted it to go into DVD or bluray, or Horror, or TV Show etc... That's not saving me anytime.
Then I would have to change mediacentermaster to scan and organize those individual folders. So I would be constantly changing the scan folders trying to chase new added material and get is squared away. Again- that's not saving any time.
Anyone every try using mediacentermaster over LAN on 20TB ???? I have. It's not desirable. I prefer a local RAID0 scratch disc that reads near 200MB/sec on my i7 machine. Just way better

My sole point in any of this is not saying my way is right or anyone else way is wrong. Just different ways for different people.
My way and my personality appreciates the the 100MB/sec speed. I'm not sure what is "wrong" with that.