How many miles has the car done and do you know if discs have ever been changed ? Have a look at the discs, if there is a deep shoulder at the very outside edges it may be that disc(s) have worn below their minimum allowed thickness and may have warped because of that. Have the pads recently been changed ? there are two types of pad, abrasive and adhesive. The abrasive type is Honda standard, and although it wears the disc more quickly it keeps disc clean and effective during use. If adhesive pads have recently been fitted they build up an 'adhesive' layer on the disc, if this layer is uneven for any reason it can cause symptoms of a warped disc and will need removing with very fine emery paper.
If the disc is warped you will get a pulsing feedback through brake pedal (similar to, but not to be confused with ABS feedback when wheels are locking up due to lack of grip).
