Do you know some Korean Dramas or movies with time travel? It shouldn't be a medical drama and it should be that a modern person goes back to the past (not a few days or years, but a century or era (like Joseon era). (Like upcoming drama "Splash Splash Love") Thank you!
On this page you might find some dramas you like: http://asianwiki.com/Category:Time_Travel_TV-Dramas

The next dramas might not be like you wanted them to be, but they are really good time travel dramas as well:

Rooftop prince : it's not someone from the present who travels into Joseon era. But it's the other way round. 4 Guys travel into modern-day seoul:

"Crown Prince Yi Gak finds that he has been transported from the Chosun Dynasty to modern-day Seoul. He meets Hong Se Na, who bears a striking resemblance to his dead wife, and is determined to solve the 300-year-old mystery of her death. With his own resemblance to the CEO’s grandson at the company where Se Na works, Gak assumes the identity of the young man to stay close to her. Can the Crown Prince navigate a modern corporation to find clues to his own time period?"


Queen Inhyun's man: It's also the other way around. Some people travel from Joseon era into modern-day seoul. It's also funny and romantic.

"Kim Boong Do is a scholar who had supported the reinstatement of Queen In Hyun when Jang heebin's schemes resulted in her being deposed and replaced as King Sukjong's queen consort. He travels 300 years into the future of modern Seoul and meets Choi Hee Jin, a no-name actress who is expecting a career renaissance through her role as Queen In Hyun in a TV drama."

Sorry if I couldn't help you :S

Thank you,  I guess, there is no drama which is not a medical and a modern person goes back to the past, a century or era. :/ Well, thank you anyway! :)
there are many time travel dramas, I've compiled a list here, hopefully you will find something to your liking:

Time travel movies/drama
I've also got a couple lists devoted to time-travel (one of my favourite sub-genres!).  :D

Time-Travel - (dramas)
Time-Travel - (movies)