For serving sequential read patterns from a compressed journal storage system, a construction area cache algorithm is used to temporarily store the read and decompressed data in a user view sequential order to minimize disk IOs and CPU utilization while serving the data to the user. Such pipes are suited for applications transporting hydrocarbons. At least one server comprises an audio-data selection module, a video-data selection module, a memory device for storing audio and video data, a unit for the selection and design of a virtual image of the user and a unit for the selection and design of an interior of a virtual cafe visualizing karaoke system for each user. A pricing engine of the exchange platform calculates the best price quote for the customized investment product on the basis of input from a plurality of competing product market makers and sends the price quote to the investor. RSA-type key pairs that are then generated using this pass-phrase will be associated uniquely with both the game player and with the machine upon which the software resides, thus preventing unauthorized copying to another machine or unauthorized use by a third party. The amount of data that has been read is determined prior to completing reading the predetermined amount of data.