A method for manufacturing a record carrier and a record carrier comprising an optical disc having a lead-in portion storing information being indicative that a fixed relation is provided between the physical address of each error correction code (ECC) block and the corresponding position of each ECC block on the disc. Provides the possibility of fast access to the ECC blocks on the disc for recording and/or reading of data. May easily be applied to existing groove-only formats, such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, and is therefore ‘backward compatible’. Furthermore, a device for recording and/or reading data on/from a record carrier. Is capable of reading the information in the lead-in portion and act accordingly, i.e. fast access if it is possible and normal access if not.