FileReader rd=new FileReader(\"new.mp4\"); FileWriter wr=new FileWriter(\"output.mp4\"); int ch; while((ch=rd.read())!=-1) wr.write(ch); wr.flush(); wr.close(); <
"FileWriter is meant for writing streams of characters. For writing streams of raw bytes, consider using a FileOutputStream."
http://download.oracle.com/javase/1.4.2/docs/api/java/io/FileWriter.html
FileWriter and FileReader are desinged for Streams of chars...
best regards.
Furkan