How to sync up more than one iphone/ipod to a PC

Question

I'm frustrated because i've run into a problem and its really cumbersome to fix.
i have several ipods and me and my girl both have iphones (5 ipods and 2 iphones).
we have one PC.
when i sync up my ipod, i can xfer music and videos to it w/o problems but if i connect her ipod it wont allow me to xfer music to it. i can dock it and see it but simply gives me the black cirle with a slash thru it, denies me adding playlists to it.
same with iphone. i literally need 1 PC per ipod/iphone in order to sync up the music and movies we want on them.
how does one copy over their music onto various ipods if you only have one PC. all our music is stored ont he PC. to fix i would need to create a virtual OS, then copy over all my music onto it to sync up but i find it hard to believe that apple did not think of this?
the expected result while using itunes...is to be able to sync up any ipod or iphone to itunes, and be able to copy over any playlist or movie.
i have bought all my dvds and cds and ripped them, whay am i not allowed to place them on more than one ipod or iphone?
Message was edited by: Host

Answer 1

thanks for those tips. i looked at those links. they are helpful but i dont need to create user profiles nor link to other music libraries.
why it fails...when i dock a 2nd iphone it sees data on it....the expected or desired result is, it just leaves data there but allows me to add more. this is the part i cant get past.
i did try making a new user account and multiple libraries, but still same problem.
my ultimate desire is to be able to connect more than one iphone to same PC and xfer data to it and also take the iphone to another PC. so the idea is to move my iphone from work and home and have it sync up with data thats on each one.
the auto sync and auto start when i dock iphone is disabled.
but when i sync up it somehow senses this iphone docks at another PC and does not recognize the media on it as being on this PC.
i deally i dont want to clutter each PC with the same data. i'd like to just keep the music and movies on the iphone and merely add from different PCs. meaning if i dock it at work, it wont have the same music or movies on it. basically i dont want to add redudant files to it that are already on my home PC, i just wish to add music from my work pc to it.
sometimes my wife comes to my workplace and notices i ripped a new album, she wants to dock her iphone and xfer it over, but itunes wont allow it, popping up a message saying she has to wipe it in order to sync up with.
i'm not sure why the ipods wont allow me to sync up music, it sees the device and shows playlists but if i try to add a playlist i get a little black icon stating its denied. i'm not worried about ipd right now. its the iphone i'm trying to figure out, how to get past this problem.
originally it started with one PC to do everything but since we could not we decided to start using our work computers. and now that we sync up to them we cant freely sync up to home PCs now, hence the frustration.
i'm trying to figure out how to use iphones between multiple PCs, single PC. it all seems so complicated yet all we want to do is simply dock, and xfer over data (all PCs are disable auto sync), we jsut want to specifically sync up only particular playlists, movies, wallpapers.
for contacts we gave up on outlook as we get some itunes outlook error about a service failing so we do it via yahoo.
we export out outlook contacts to yahoo and simply use yahoo to merge contacts.