Here are a few of the online shops selling Cds that will deliver to Ireland.

Amazon is probably the best known online shop and Amazon UK can deliver music CDs to Ireland . The prices are normally slightly cheaper than you would get in Irish music shops. Delivery charges to Ireland are £1.49 GBP per order plus £0.39 GBP per CD. I.e 2 CDs would cost £2.27 GBP for delivery. (about €3.40 Euro) Visit the Amazon Web Site
CD WOW have Cds priced in Euros and delivery to Ireland is included in the prices you see. Some CDs are as cheap as €5. The range of Cds is probably not as big as Amazon or HMV - but for chart stuff they are fine.
HMV sell music Cds and DVDs with the cost of delivery to Ireland depending on the number of items ordered. A typical order of 2 Cds would cost £3.50 GBP to deliver anywere in Ireland by airmail. HMV also sell games for Playstation and XBox
Tesco: If you live in Ireland within about 20 miles of a Tesco store that operates a home delivery service - you can order your grocery shopping online and get a few Cds at the same time. They normally stock just the top 40 - and a few other compilation Cds - but their prices are probably the lowest ( Usually €14.95 for all top 40 albums). Visit Tesco Ireland .
The Hut also deliver CDs to Ireland - delivery costs depend on the order size.

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