The commentary will be streamed live on the ERC website, www.ercrugby.com, while listeners will also get regular updates from Ulster's must-win game against the Ospreys.
The following day, RTE Radio 1's Saturday Sport show will carry full commentary of the repeat of last season's Heineken Cup quarter-final when Munster return to Stradey Park to face Llanelli Scarlets. The commentary, provided by Michael Corcoran and Donal Lenihan, will also be available through the ERC site.
A reminder for fans who are able to catch Sky Sports' coverage this weekend - the Leinster v Edinburgh clash will be live on Sky Sports 1 tomorrow night, while Munster's showdown with the Scarlets will be live on Sky Sports 2 on Saturday evening.
RTE RADIO 1'S EUROPEAN RUGBY COVERAGE -
Friday Sportsnight, 6.30pm-10pm
Connacht v Newcastle - full commentary with Gary Moran and Joe Healy
Leinster v Edinburgh - full commentary with Michael Corcoran and Emmett Byrne
Ospreys v Ulster - reports from Phil Steele
Saturday Sport, 2pm-7.30pm
(presented by John Kenny)
Llanelli Scarlets v Munster - full commentary with Michael Corcoran and Donal Lenihan