I failed to build Handbrake v0.9.9 myself so I went looking for someone else's solution. For the record I could not resolve some Gtk dependencies and I really wanted the GUI so I gave up!
I found Linux Tech was hosting Handbrake v0.9.9.8 in a testing repository. I already had EPEL6 via Satellite and I have "atrpms" defined but I did not use their repository for this project. Note I leave these extra repositories disabled by default to reduce the package update noise.
The Linux Tech repos are below for you reference. Just execute the following command and you too can be off transcoding DVB recordings into formats suitable for Apple, PS3, Android, etc.
yum --enablerepo=linuxtech-testing --enablerepo=linuxtech install handbrake-gui
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/etc/yum.repos.d/atrpms.repo
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[atrpms]
name=ATRPMS for RHEL 6 x86_64
baseurl=http://dl.atrpms.net/el6-x86_64/atrpms/stable/
enabled=0
gpgcheck=0
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/etc/yum.repos.d/linuxtech-testing.repo
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[linuxtech-testing]
name=LinuxTECH Testing
baseurl=http://pkgrepo.linuxtech.net/el6/testing/
enabled=0
gpgcheck=1
gpgkey=http://pkgrepo.linuxtech.net/el6/release/RPM-GPG-KEY-LinuxTECH.NET
[linuxtech]
name=LinuxTECH
baseurl=http://pkgrepo.linuxtech.net/el6/release/
enabled=0
gpgcheck=1
gpgkey=http://pkgrepo.linuxtech.net/el6/release/RPM-GPG-KEY-LinuxTECH.NET
