What's your budget?
I picked up a whole slew of office furniture from
Dania recently and at the same time picked up 3 bookcases from the
Klassik collection, the 84"H wide model. Yeah, it's veneer, but it's
nice veneer (there is such a thing!). Price was pretty reasonable, very solid construction (amost entirely metal-on-metal connection points), you can add / remove shelves as you wish, and most of their collections are modular allowing you to tailor specifically for your space and wishes. For example, I got a bunch of extra shelves so each shelf will basically be just a bit taller than a CD case on end and added doors at the bottom for out-of-sight cabinet storage space. I also could have added rounded interior or external corner-ends, glass cabinet doors, matching shelves / cabinets of different sizes, etc.
Another reason I went the Dania route: I had a tough time finding tall enough alternatives. I don't want to have to lie / sit / kneel on the floor to review the CD/DVDs on my shelving. With the Klassik collection (and probably their others as well), I can put a cabinet space at the bottom taking up about the first 30-34" from the floor, then have sufficient of space above - given the 84" height - to store plenty of discs without having to sit or kneel to review.
I have no idea about the particular Ikea unit referenced, but IME Ikea's construction leaves a lot to be desired. For me, given a choice between a solidly constructed unit with very nice veneer and a poor or mediocre constructed all-wood pine unit - and all else being equal - I'd go with the veneer every time. And just as a price reference point, the 84"H bookcase I got costs ~2x the Ikea, but is also ~2x as large.
If we owned instead of rented, I would've selected one of Dania's more upscale models, but for the time being these will work just fine.
You may also want to check out places like
Racks and Stands, just because I didn't find anything there I liked doesn't mean you won't.