Manufacturers continue to release standard DVD titles , and the format remains the preferred one for the release of older television programs and films. Shows that were shot and edited entirely on film, such as ', cannot be released in high definition without being re-scanned from the original film recordings. Certain special effects were also updated to appear better in high-definition. Shows that were made between the early 1980s and the early 2000s were generally shot on film, then transferred to cassette tape, and then edited natively in either NTSC or PAL, making high-definition transfers impossible as these SD standards were baked into the final cuts of the episodes. ' is the only such show that has gotten a Blu-ray release. The process of making high-definition versions of "TNG" episodes required finding the original film clips, re-scanning them into a computer at high definition, digitally re-editing the episodes from the ground up, and re-rendering new visual effects shots, an extraordinarily labor-intensive ordeal that cost Paramount over $12 million. The project was a financial failure and resulted in Paramount deciding very firmly against giving "Deep Space Nine" and "Voyager" the same treatment. However, "" included small amounts of remastered "Deep Space Nine" footage.