Is there any inconvenience to transform the enormous Samsung NX raw files into DNG ?

I have transformed all my RAW files (NX20 and NX10 into DNG - my reasoning being that although I produced a JPG copy of the shots I like, I might want to revisit them after my post processing skills improve. Keeping DNG rather than SRW means I only have to worry about backwards compatibility with a single file format...

Haven't found any disadvantages so far...