Book-Off is conveniently located in Costa Mesa near one of Orange County's few Japanese supermarkets, Marukai. Book off has a wide selection of Japanese media (books, cds, videos, etc.), both new and used for competative prices. I neither speak nor read Japanese, but I still enjoy looking through their book racks to see whats new. Also, for the Japanese street fashion enthusists, there is often a good selection of used Japanese Fashion magazines for super cheap, although many are typically out of date.
As mentioned in previous reviews, Copy 4 Less has competative prices and is conveniently located near Goldenwest Community College, so it is highly traversed by students. However, upon my last visit, one of the workers was completely and unnecessarily rude to me. I suffer from some degree of hearing loss, so I had asked a worker to repeat a question he had asked me; he started talking in a very sarcastic & rude manner, in a slow angry voice as if I either couldn't understand english or was mentally incapable of understanding. Needless to say, I can no longer support a business that treats its customers like this. If you want low prices, but generally do not care about customer service, I would only recommend due to its low prices.