In 2007, Eric worked as a mixer, engineer and music supervisor for IFC's Henry Rollins show. The tv-show featured "exclusive performances from some of the most important established and emerging bands in music", according to the show's web site. The performances were filmed live at Eric's Bombshelter Studios. Musical guests included Sleater-Kinney, Thom Yorke, John Doe, Frank Black, Jurassic 5, Dashboard Confessional, Ben Folds and Death Cab for Cutie.

Here's a full overview of the artists Eric worked with on the show:

As mixer, engineer and music supervisor:

Ani DiFranco: 'Millennium Theater', 'Hypnotized'
Aimee Mann: 'Save Me', 'Video'
Ben Folds: 'All U Can Eat', 'Jesusland'
Ben Harper: 'Gather Round The Stone', 'Please Don't Talk About Murder While I'm Eating'
Black Rebel Motorcycle Club: 'Howl', 'Shuffle'
Damian Marley: 'Move', 'Khaki Suit'
Daniel Johnston: 'Careless', 'Mask'
Dashboard Confessional: 'Don't Wait', 'Vindicated'
Dead Boy & The Elephantmen: 'Stop, I'm Already Dead', 'Blood Music'
Death Cab For Cutie: 'Crooked Teeth', 'The Sound Of Setting'
Dinosaur Jr.: 'Forget The Swan', 'Raisons'
Frank Black: 'Nadine', 'I Burn Today'
John Doe: 'Warm My Bones', 'Heartless'
Jurassic 5: 'Freedom', 'Red Hot'
New York Dolls: 'Dance Like A Monkey', 'Lookin' For A Kiss'
Ringside: 'Struggle', 'Criminal'
Rollins Band: 'Burned Beyond Recognition', 'Volume 4'
Slayer: 'Cult', 'Disciple'
Sleater-Kinney: 'Entertain', 'Jumpers'

As music supervisor:

Thom Yorke: 'Cymbal Rush', 'The Clock'

In april 2007, SpiralArms released a full length cd, featuring demos from the two previous years. The track list consisted of 'Straight To Your Head', 'That Song', 'Stone Me Cold', 'Gettin' Gone', 'Go', 'Diamonds & Methadone', 'Lonely Guns', 'Skyline A Go-Go', 'Minds Eye', 'Bohemian Groove' and 'Like a Cancer'. It is not known on which of those recordings Eric played drums.

Eric released a statement in January 2006, saying tht h's commitment to his Bombshelter Studios got in the way of his band SpiralArms. The band decided to use replacement drummers for the time being, and Eric was eventually permanently replaced by drummer Chris Kontos in March 2006. The band announced the replacement on May 23.

Eric produced and co-mixed 'One Love' for the debut album 'Conscious Revolution' by Cipes and The People, featuring Greg Cipes.

In late 2004, Eric produced three songs ('Stone Me Cold', 'Diamonds and Methadone', and 'Skyline a Go-Go') for the San Francisco band SpiralArms. The songs were mixed in February of 2005 at producer Sean Beavan's studio. Not long after that, the band was struck by bad luck as drummer Steve Jacobs sustained a debilitating shoulder injury that has prevented him from playing in the band for at least a year. Eric, who was in the producer's chair at that time, temporarily replaced Jacobs in March 2005.

In May of that year, the band announced that Eric was an official member of the band featuring James Walker on Bass, Tim Narducci on Guitars and Vocals, and Craig Locicero on Guitars. The band finished a photoshoot with Eric earlier in the month and headed into Eric's Bombshelter Studios on the 23rd to record new songs with Eric on drums. The first song the band recorded with Eric on drums was 'Gettin' Gone', it was posted to the band's MySpace on July 8.

In September 2005, bassist James Walker left the group. The band announced this news on their MySpace page. Eventually Walker would be replaced by bassist Chris Lombardo. The band also added Brad Barth on keyboards.

Eric opened his own recording studio, Bomb Shelter Studios, in Los Angeles in 2004. Carved out of what was previously a fancy soap factory, Bombshelter boasts 100-year-old sandblasted brick walls, 16-foot-high ceilings and lots of space: think half-court basketball in the lounge. The recording area can hold a 44-piece orchestra; there are also three large iso rooms. The control room is big, too. Its centerpiece is a 48-input SSL G+ refurbished by Professional Audio Design; also part of the setup is an 8-channel vintage Neve sidecar. The inaugural session on Bombshelter’s new console was mixing for Fu Manchu with producer/engineer Brian Dobbs.

In 2004, Eric produced, mixed and engineered 2 Cent Penny's debut album. Some sources say that he also played drums on the record, but others claim drummer Kevin Stevens was brought in to lay down drum tracks. 2 Cent Penny consisted of singer Dan Ryan and guitarist Nalle Colt. Two songs that they recorded with Eric are 'Records Play' and 'Don't Let Me In'. They were featured in the Jorge Ameer film 'The House Of Adam'.

Eric produced the album 'A Face For Radio' by a band called Primate, featuring Skinlab guitarist Mike Roberts, Systematic bassist Nick St. Denis (on guitar), bassist Rik Miles and drummer Paul Hopkins. He is also credited as a mixer and engineer on this project. Primate eventually changed their name into RAZE the STRAY. No additional information is available.

In November, San Francisco band SpiralArms announce that they will be finishing the recording of a three-song demo ('Stone Me Cold', 'Diamonds and Methadone', and 'Skyline a Go-Go') at Eric's Bombshelter Studios.

In 2003, Eric produced a 3-song demo for the band Man Made God, featuring guitarist Craig Locicero, drummer Steve Jacobs, bassist James Walker and singer Pann.

On September 21, 1999, Eric played with Dean and Robert DeLeo as the backing band for Michael Cerveris, who plays Hedwig in 'Hedwig And The Angry Inch'. They performed nine songs at Club Vynyl in Hollywood, including a version of STP's 'Big Bang Baby', which Cerveris dedicated to Scott Weiland, who is serving jail time at that moment. The show, which also featured 'Hedwig' co-creators John Cameron Mitchell and Stephen Trask, celebrated the start of the West Coast production of 'Hedwig,' which was produced by David Bowie.

Talk Show, featuring Eric Kretz, Robert DeLeo, Dean DeLeo and singer Dave Coutts, released their self-titled album on the Atlantic Records label on September 3, 1997. The first and only single from the album was the track 'Hello Hello. They toured in support of the Foo Fighters and Aerosmith.