The tag "-FLAC-" in the filename indicates the audio format of the file. FLAC stands for Free Lossless Audio Codec . Unlike MP3, which compresses audio by discarding data to save space (lossy), FLAC compresses audio without losing any quality.
This technical detail signifies a superior listening experience. The "88" label implies that this specific file is a high-resolution capture of the HDCD master. This offers greater dynamic range and clarity than a standard "Red Book" CD rip, making it a highly sought-after version for collectors who want to hear the 2007 remasters in the highest possible fidelity. Led Zeppelin - Mothership -2007- -FLAC- 88