Exporting/importing library only works with Manga rock titles. Is this the only way to get your list out?

Like the title says, I kind of need another way to get titles out because I exported it from my phone to the Web (it only worked after the 11th time), and then imported it on the website, but it only took Manga rock sources.
This has kind of buggered me as I have 650 titles (I don't have that much time anymore but still love to read and find new things), and most of them are on kissmanga source.

Because manga rock didn't have their own source from the start I just stayed with what I had been using, I didn't see the need to start using their own.
Is there any other way to do this?