Disc playback apparatus and method

A disc playback method for reproducing information by demodulating and decoding a radio-frequency signal obtained by receiving reflected light of a beam applied to a recording surface of a disc, the method comprising the steps of:

• determining the format of the disc;
• determining whether or not compensation for a frequency characteristic of the radio-frequency signal is necessary;
• and
• performing high-frequency compensation or low-frequency compensation on the radio-frequency signal depending on the format of the disc when the compensation is necessary.

A disc playback apparatus for reproducing information by demodulating and decoding a radio-frequency signal obtained by receiving reflected light of a beam applied to a recording surface of a removable disc when the removable disc is loaded in the disc playback apparatus, the apparatus comprising:

• a disc format determining unit adapted to determine the format of the loaded disc;
• a high-frequency compensation unit adapted to compensate for a high-frequency component of the radio-frequency signal;
• a low-frequency compensation unit adapted to compensate for a low-frequency component of the radio-frequency signal;
• and
• a control unit adapted to determine which of the high-frequency compensation unit or the low-frequency compensation unit is to be used to compensate for a frequency characteristic of the radio-frequency signal based on the determined disc format.