Primeiro baixe e isntale o pacote: compat-libstdc++-33

[root@localhost ~]# yum install compat-libstdc++-33
Dependencies Resolved

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Package Arch Version Repository Size
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Installing:
compat-libstdc++-33 i386 3.2.3-61 fedora 232 k

Transaction Summary
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Install 1 Package(s)
Update 0 Package(s)
Remove 0 Package(s)

Total download size: 232 k
Is this ok [y/N]: y
Downloading Packages:
(1/1): compat-libstdc++-3 100% |=========================| 232 kB 00:04
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing: compat-libstdc++-33 ######################### [1/1]

Installed: compat-libstdc++-33.i386 0:3.2.3-61

Baixe o RPM do real player gold 10

Depois de baixado o RPM
[root@localhost Real_Player_Gold_10]# ls
RealPlayer10GOLD.rpm

vamos instalá-lo:
[root@localhost Real_Player_Gold_10]# rpm -ivh RealPlayer10GOLD.rpm
Preparing... ########################################### [100%]
1:RealPlayer ########################################### [100%]
[root@localhost Real_Player_Gold_10]#

As rádios on-line que utilizam o Real Player podem ser encontradas no link:
Rádios On-line

Bom divertimento!