Abstract: Method to enable a local system time clock counter (STC) of a receiving recording device to lock to program clock reference (PCR) information comprised in a received real time sequence of information signal packets, such as MPEG2 Transport Stream packets. The method comprising determining the number of cycles between arrival of the first information signal packet and the arrival of the information signal packet comprising the first Program Clock Reference (PCR) information. This information is stored as an attribute of the stored sequence.

Abstract: In a method for providing copy-protection services on a storage medium (for instance a solid state memory module), the data are arranged in sectors to which a field (S4T) is associated, where said field contains a random value Ri which is changed randomly when writing data to said sector. By encrypting the data stored on the medium using a key which depends critically on said random numbers, bit-by-bit copies (apart from said random numbers, which can not be deterministically changed by an application) to a second storage medium or recopies from some intermediate storage medium, can not be decrypted because the values of said random numbers will have changed, thus preventing unauthorized duplication and replay attacks.

Abstract: Method to enable a local system time clock counter (STC) of a receiving recording device to lock to program clock reference (PCR) information comprised in a received real time sequence of information signal packets, such as MPEG2 Transport Stream packets. The method comprising determining the number of cycles between arrival of the first information signal packet and the arrival of the information signal packet comprising the first Program Clock Reference (PCR) information. This information is stored as an attribute of the stored sequence.

Abstract: Method to enable a local system time clock counter (STC) of a receiving recording device to lock to program clock reference (PCR) information comprised in a received real time sequence of information signal packets, such as MPEG2 Transport Stream packets. The method comprising determining the number of cycles between arrival of the first information signal packet and the arrival of the information signal packet comprising the first Program Clock Reference (PCR) information. This information is stored as an attribute of the stored sequence.

Abstract: In a method for providing copy-protection services on a storage medium (for instance a solid state memory module), the data are arranged in sectors to which a field (S4T) is associated, where said field contains a random value Ri which is changed randomly when writing data to said sector. By encrypting the data stored on the medium using a key which depends critically on said random numbers, bit-by-bit copies (apart from said random numbers, which can not be deterministically changed by an application) to a second storage medium or recopies from some intermediate storage medium, can not be decrypted because the values of said random numbers will have changed, thus preventing unauthorized duplication and replay attacks.

Abstract: A storage device for recording and retrieving information blocks on a removable record carrier is described. Via an interface (44) the device receives commands, user data blocks and meta data blocks comprising file management information. The device has a non-volatile memory (31), a meta data block detection unit (47), and a control unit (20). The device temporarily stores the meta data blocks in the non-volatile memory until detecting an update condition, e.g. an eject command. The update condition indicates that the removable record carrier is to be updated to a state in which the record carrier is usable in a different storage device. In the event that the update condition has been detected the meta data blocks are transferred from the non-volatile memory to the record carrier (49).

Abstract: Method to enable a local system time clock counter (STC) of a receiving recording device to lock to program clock reference (PCR) information comprised in a received real time sequence of information signal packets, such as MPEG2 Transport Stream packets. The method comprising determining the number of cycles between arrival of the first information signal packet and the arrival of the information signal packet comprising the first Program Clock Reference (PCR) information. This information is stored as an attribute of the stored sequence.