EMB Numbers writes "C-Net says last year saw a 131 percent jump in digital sales, but overall the industry still saw about a 4 percent decline in revenue. Some executives at this week's Digital Music Forum East conference lashed out at Jobs, blaming Apple and its CEO for their troubles. The impression at the conference was that Jobs' call three weeks ago for DRM-free music was anything but sincere. As the article puts it, 'Apple has maintained a stranglehold on the digital music industry by locking up iTunes music with DRM ... and "it's causing everybody else who is participating in the marketplace — the other service providers, the labels, the users — a lot of pain. If they could simply open it up, everybody would love them.""