the circumvention of this obstacle will not be easy
1Tractor — This article is about a vehicle used in agriculture or construction. For the power unit of a semi trailer truck (articulated lorry), see tractor unit. For other uses, see Tractor (disambiguation) …
2Blu-ray Disc — Blue ray redirects here. For the fish of the same name, see Neoraja caerulea. Blu ray Disc Media type …
3HD DVD — Media type High density optical disc Encoding …
