You need to purchase Lightroom 6/Lightroom CC
Download the FREE Adobe DNG Converter, version 9.0, and have this program change your RAWs to DNG, which then can be imported into Lightroom 5.
Thanks I already download DNG converter, but have some problems to change all my RAWs to DNG files. For example 60 of 260 RAWs can not be changed and I don't know why?
Is there an error message?