Wikipedia
D-Side was an Irish boyband established in 2001, by twins Rory and Eoghan MacSweeney and they were signed to Edel Records. Edel brought in Kim Glover to manage the band after her success with New Kids on the Block, Ant & Dec (as PJ & Duncan), B*Witched and Let Loose. Glover secured their entry into Japan getting them a recording contract with Avex and worked with them until the end of 2004. They had some success in Japan, the United Kingdom, and Europe, winning 'Best New Band Award' at the Smash Hits Tour in 2002.
The band was originally made up of five members, Derek Ryan, Shane Creevey, Derek Moran, Damien Bowe and Dane Guiden, but became a threesome, however, when Bowe and Guiden both left for personal reasons. They have had three Top 10 singles in the UK, and have supported Blue, Westlife and numerous other bands on tour during 2003 and 2004, as well as being involved in Charity events such as Soccer Magic, Soccer 6, Children in Need and ChildLine. In 2006 D-Side took part in international contest "New wave" in Urmala. They released a total of three albums in Japan, as well as a greatest hits compilation. They were signed to the Japanese record label, Avex and managed by John Black at Black Gold Management. Derek Moran is now a Channel 5 TV presenter on Milkshake! and is managed by Kim Glover.
D-Side is the telephone cabling which is connected from the BT Primary Connection Point (PCP) telecoms cabinet to a point close to a residence or business known as the "Distribution Point" (DP) and consists of multiple pairs of copper wires. It may pass through a BT Secondary Connection Point (SCP) telecoms cabinet, sometimes known as pillars, en route to the DP(s).
In the event of a broadband or phone line problem, replacing the D-Side line pair is one potential correction that might be made.
D-Side is a shortening of the term "distribution side" of the telephone network. Conversely E-side is the "exchange side" of the telephone network between the cabinet and the telephone exchange.