Hi all::)
Please tell me:how can I convert RealOnePlayer file (rm file) to mp3 file?which software?
Is quiktime good?? and how?(please don't advice downloading software -because I don't want to infect my mp3 player! )
Thanks in advance

Unfortunately, you are going to have to download a program in order to get your problem solved.
You can use boilsoft rm to mp3 converter.
RM to MP3 Converter, Convert RM to MP3, RA to MP3, RM to WAV, RA to WAV (http://www.boilsoft.com/rmtomp3/)

RM to MP3 Converter lets you easily to convert Real Audio files (.rm, ra, ram) to MP3 and WAV files, and Extract Audio from Real Video files. It' easy and fast!

RM to MP3 Converter also supports other audio format, with it, you can convert wma, ac3, mp3, wav to MP3 and WAV files
.

RM to MP3, RM to WAV, RA to MP3, RA to WAV all-in-one!


Features

Support convert RM to MP3
Support convert RM to WAV
Support convert RA to MP3, WAV
Support convert wma, ac3, mp3, wav to mp3, wav.
Support Batch convert.
Retrieve information (title, artist, comment) from the rm/ra files, write ID3 tags in output MP3 file.


Reference
Boilsoft, retrieved November 9, 2007 from RM to MP3 Converter, Convert RM to MP3, RA to MP3, RM to WAV, RA to WAV (http://www.boilsoft.com/rmtomp3/index.html)

Here is one that will do it for free: Free RM to MP3 Converter - Freeware convert RM to MP3. (http://www.rm-mp3.org/)

Unfortunately, you are going to have to download a program in order to get your problem solved.
You can use boilsoft rm to mp3 converter.
RM to MP3 Converter, Convert RM to MP3, RA to MP3, RM to WAV, RA to WAV (http://www.boilsoft.com/rmtomp3/)

RM to MP3 Converter lets you easily to convert Real Audio files (.rm, .ra, .ram) to MP3 and WAV files, and Extract Audio from Real Video files. It' easy and fast!

RM to MP3 Converter also supports other audio format, with it, you can convert wma, ac3, mp3, wav to MP3 and WAV files
.

RM to MP3, RM to WAV, RA to MP3, RA to WAV all-in-one!


Features

Support convert RM to MP3
Support convert RM to WAV
Support convert RA to MP3, WAV
Support convert wma, ac3, mp3, wav to mp3, wav.
Support Batch convert.
Retrieve information (title, artist, comment) from the rm/ra files, write ID3 tags in output MP3 file.


Reference
Boilsoft, retrieved November 9, 2007 from RM to MP3 Converter, Convert RM to MP3, RA to MP3, RM to WAV, RA to WAV (http://www.boilsoft.com/rmtomp3/index.html)
Thanks a lot for your help,but what about Quicktime?