授权委托书了解所有这些礼物,即签字人在此构成,并任命各丽塔拉森,查尔斯·康斯坦蒂,斯图尔特·德拉蒙德和肖恩·霍尔,签订单,信守真正的和合法的代理人,在-事实:(1)执行的并代表签署人,在签字人容量作为官员和/或Quantum公司(“公司”)的导演,形式3,4和5按照第16(a)所述证券交易的1934年法亚搏官网app登录入口和其下的规则;(2)执行并代表签名的签订和执行任何行为,并履行可能是必要或可取的任何此类表单3,4或5,填写和执行任何修正案或修订,以及及时申请与美国证券交易委员会和任何证券交易所或类似机构的形式;及(3)采取任何其它动作与前面的,其在例如律师合事实认为,可能是有益的,以连接在,或通过,以下签字法律要求,可以理解的是,最佳利益通过这样的律师 - 中 - 实际上代表签字依照本授权委托书的执行文件须符合格式,并须包含这样的条款和条件,这样的律师 - 在 - 事实可能在这样的律师 - 在 - 事实的自由裁量权批准。特此授予每位律师的律师,才能完成,并执行任何和每一项行为,并在行使中的任何权利和权力方面进行任何必要的,必要或适当的行为,如完全涉及所有意图和目的,因为如果个人出席或者可以在替代或撤销的完全权力,在此批准并确认所有这些律师的替代方案,或此类律师的替代品或替代品通过律师的这种权力和理所当然地做出合法的或致力于理所当然的。 The undersigned acknowledges that the foregoing attorneys-in- fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934. This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact. IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 12th day of February, 2004. Signature: /s/ Steven C. Wheelwright Name: Steven C. Wheelwright